Karakter & Staf

Kouko Nosa

Utama

Female · Gol. darah O

Height: 155 cm (5'1") Secretary of the destroyer-class ship, Harekaze. Usually polite and mild-mannered, she is a "jack-of-all-trades" who can handle literally anything. She holds the "Database Specialist" certification—considered the most difficult domestic qualification in the field—and is constantly seen with a tablet, recording data, performing calculations, and gathering information. It can be inferred that she qualified for the Paymaster Corps. She possesses an exceptional memory—capable of reciting the full, 100-plus-character official name of Bangkok without error—yet she lacks social skills to such an extreme degree that her interview scores were lower even than Shima's; consequently, she has few close friends. Claiming that "fiction holds more truth than non-fiction," she has a habit of escaping reality; she might bring Zimbabwean dollars for a gag performance or present her speculations through highly exaggerated one-woman skits where she alters her voice for different roles. She develops an increasingly peculiar rapport with Mina, with whom she hits it off due to their shared taste in movie genres. However, since she mostly enjoys these scenarios within her own imagination, the initial reaction from others was lukewarm—often deemed "not particularly funny."

Yuuko Kurose

Akeno Misaki

Pendukung

Female · Gol. darah B

Height: 152 cm (5'0") She is the commanding officer of Harekaze. She has a cheerful, positive personality and is an optimist who believes that "shipmates are family"; no matter what difficulties arise, she maintains the attitude that "things will work out." She possesses incredible luck—winning the top prize in a lottery on her first try, never drawing anything less than "Daikichi" (Excellent Luck) on a fortune slip, and cracking open eggs with double yolks on more than five occasions. She applied to the maritime school in Yokosuka to fulfill the dream of becoming a "Blue Mermaid" that she had shared with her childhood friend since they were young. Her extraordinary luck extended to the entrance exam, where the topics she "happened" to study were the ones that appeared on the test. She successfully passed the exam for the Navigation Department (as evidenced by the official site, the insignia on her uniform's right shoulder, the specialization emblem in the manga version, and scenes of the practical exam) and became the captain of the Kagerō-class ocean-going training vessel Harekaze. She memorized the names of all 31 crew members and two animal mascots, addressing them as "—chan" (or "—san" in some cases).

Shiina Natsukawa

Moeka China

Pendukung

Female · Gol. darah AB

Height: 158 cm (5'2") As Akeno's childhood friend and a source of mutual encouragement, she aspires to become a Blue Mermaid. After enrolling at Yokosuka Girls' Marine High School, she is appointed captain of the Musashi. She excels academically and possesses strong leadership qualities. It can be inferred that she applied to and passed the entrance exam for the Navigation Department. Having been a model student since childhood—gifted with an exceptional memory and a diligent nature that allowed her to handle anything with ease—she had begun to lose interest in everything around her. However, befriending Akeno changed that completely; she came to feel that being with Akeno was the most exciting thing in the world. Consequently, while she may appear to be the "big sister" figure to Akeno at first glance, she is actually the one who relies more heavily on the other emotionally. After entering junior high, both girls were taken in by new families and lived apart; however, their bond goes far beyond that of ordinary childhood friends—they are so close that they embrace whenever they reunite. During their junior high years, they kept in touch via email, and she even sent Akeno a self-made study guide to help her prepare for the marine high school entrance exam. It appears her mother was a Blue Mermaid.

Sora Amamiya

Maron Yanagiwara

Pendukung

Female · Gol. darah A

Height: 146 cm (4'8") She is a childhood friend of Hiromi Kuroki and hails from the same hometown. Although she is a dependent type who fears being alone, she puts on a cheerful front for those around her. Despite being from Choshi City, Chiba Prefecture, she possesses the spirited, straightforward attitude of a true-blue Edokko (native of old Tokyo). Influenced by her grandfather—a fan of period dramas—she grew up watching the genre with him and developed a fondness for the distinctive Edo-style dialect. She is skilled at tinkering with machinery; as the crew member in charge of the engines, she takes such pride in her role that she refers to herself as a "stoker" (or "boiler-tender"). Having studied marine engineering since junior high school, she possesses top-tier technical skills and an exceptional memory—capable of recalling blueprints after seeing them just once. However, her somewhat careless nature can be a drawback. With the mindset of a dedicated artisan, she often stays behind in the engine room to tend to the machinery or take a quick nap, even when the rest of the crew is relaxing or playing on the deck. She also met the other members of her close-knit quartet of Engineering Department friends during the entrance exam. Since her grandfather was a fisherman, her family meals consisted of fish dishes day after day; consequently, while she became skilled at dressing fish, she grew to dislike eating them.

Natsumi Takamori

Mashiro Munetani

Pendukung

Female · Gol. darah A

Height: 159 cm (5'2") She is the daughter of the Soya family, a prestigious lineage that has produced generations of Blue Mermaids. As the youngest of three sisters, she is a serious honor student who excels in every subject; however, she is incredibly unlucky—incidents include shifting her answers by one spot on an entrance exam and colliding with Akeno Misaki to fall into the sea right after enrolling. Consequently, she is constantly muttering, "I have no luck..." She dislikes the nickname "Shiro-chan," given to her by Akeno, and prefers to be addressed as "Vice-Captain" or "Ms. Soya." Hiromi Kuroki looks up to her with admiration and frequently supports her. While she maintains a serious and dignified demeanor, she loves cute things and keeps a large collection of stuffed animals in her room—which she ends up sharing with Wilhelmina. Incidentally, her favorite stuffed animal is a shark named Bruce. As seen in the "specialty emblem" displayed on the right shoulder of her uniform, she applied to and passed the entrance exam for the Gunnery and Torpedo Department at Yokosuka Girls' Marine High School. As a result, she effectively performs the duties of the Gunnery and Torpedo Officer during combat.

Lynn

Hiromi Kuroki

Pendukung

Female · Gol. darah O

Height: 169 cm (5'5") She is a childhood friend and fellow native of the same hometown as Maron Yanagihara. According to Maron, "Kuro-chan is cool and composed, yet kind; I want to stay close friends with her forever." Although she appears cool, she tends to get intensely fixated on things once she takes an interest; for instance, a childhood tour of a soy sauce factory got her hooked on making her own soy sauce, and seeing a diesel locomotive sparked a hobby of tinkering with machinery. Perhaps due to this nature, she was once unsure of her future path during junior high; however, after meeting Mashiro Soya at the Blue Mermaid Festa and the entrance exam venue, she developed a strong admiration for her and resolved to become a Blue Mermaid herself. Incidentally, Maron gets jealous, fearing that "Kuro-chan might get snatched away by some random girl." Beyond general machinery, she possesses deep knowledge regarding fuels, lubricants, and explosives. After enrolling, she was delighted to be assigned to the same ship—the Harekaze—as Mashiro, but she openly expressed dissatisfaction and jealousy over the fact that Akeno Misaki, rather than Mashiro, served as the ship's captain.

Natsuki Aikawa

Shima Tateishi

Pendukung

Female · Gol. darah A

Height: 147 cm (4'8") Chief Artillery Officer of the destroyer-class ship, Harekaze. She comes across as quiet, reserved, and soft-spoken. Her speech is halting, limited to just a word or two; when answering, she simply says "Oui." It was the school's decision to assign her to the Harekaze in the hope that the experience would improve her communication skills. As her list of special talents suggests, she excels at softball; she is a true professional who delivers results, even though she says little more than "Oui" during matches. She also loves curry—so much so that she once ate it for every meal for two whole weeks. In fact, she becomes quite articulate whenever the conversation turns to curry. While one might think eating nothing but curry for a fortnight would get tedious, it apparently wasn't a hardship for her at all.

Nozomi Furuki

Mei Irizaki

Pendukung

Female · Gol. darah AB

Height: 146 cm (4'8") Mei Irizaki is the Chief Torpedo Officer aboard the Harekaze. She is self-willed and hates to lose. She tends to act impulsively and impatiently—much like the famous depiction of Oda Nobunaga: "If the cuckoo doesn't sing, kill it." She can often be seen with Shima Tateishi, whom she is best friends with.

Atsumi Tanezaki

Rin Shiretoko

Pendukung

Female

Height: 148 cm (4'9") She serves as the Navigation Officer aboard the Harekaze, an ocean-going training ship of the Yokosuka Girls' Marine High School. Although she often handles the helm on the bridge, she has a terrible sense of direction. She is an incredibly anxious and timid person who always seems somewhat jittery and prone to bursting into tears. Ironically, however, she becomes strangely energetic whenever she decides to make a run for it—sometimes even misusing her talent for running fast to facilitate her escape. Perhaps due to her constant worrying, she suffers from frequent stomach aches and always carries stomach medicine with her. Having spent her life running away from things out of fear since childhood, she decided to become a Blue Mermaid in an effort to change herself. Encouraged by Akeno whenever she falls into a slump, she is striving to pick herself up and move forward. Mayumi Uchida, a fellow member of the Navigation Department, is her childhood friend; she, too, has often been dragged into Suzu's habit of running away. Her family runs a shrine located on the water off the coast of Hinomisaki in Shimane Prefecture, and she serves as a shrine maiden there. Since the shrine is known for granting blessings related to matchmaking and good fortune, she visited Yokosuka's Suwa Shrine—famous for granting success in exams—during the New Year holidays to pray for her admission to the marine school. However, her flawless execution of the ritual purification (emizu) led a shrine official to mistake her for a fellow professional, and she ended up helping out with the work. It remains unclear whether the two of them ever realized this connection after meeting aboard the Harekaze.

Yurika Kubo

Kaede Marikouji

Pendukung

Female · Gol. darah A

Height: 158cm (5'2") Calm and composed, and raised in a wealthy family, she speaks with extreme politeness. Her family estate is vast—the distance from the front gate to the main entrance alone takes about twenty minutes to walk—and she was accustomed to carrying checks rather than loose change. The Madenokoji family founded Madenokoji Heavy Industries, amassing a fortune in shipbuilding and trade across the Tokai region during the transition from the Edo to the Meiji period. They remain responsible for constructing the majority of residential floating structures in the Tokai region today and even own private floating vessels. She is always seen wearing a shawl. Aboard the Harekaze, she is renowned for having one of the most beautiful heads of long black hair, which retains its luster even when water shortages force the crew to bathe in saltwater. She is musically gifted; she has mastered a wide range of string and keyboard instruments—playing the violin at a professional level—and possesses an extraordinary ear for pitch. Curiously, however, she struggles with wind instruments. Despite this weakness, she serves as the Harekaze's bugler, using a trumpet to signal the time and convey other messages. She is also an avid music listener and is a devoted user of vacuum-tube amplifiers. She leverages her keen sense of pitch to handle sonar operations, though the lack of a relief crew member makes the role demanding; during a late-night battle against a submarine, she found herself fighting off drowsiness as much as the enemy. Her family is the head of the Madenokoji school of naginata (halberd) martial arts, and she is a highly skilled practitioner who has attained full mastery of the discipline.

Sakura Nakamura

Tsugumi Yagi

Pendukung

Female · Gol. darah O

Height: 151 cm (5'0") Friends with Kei—a fellow Harekaze radio operator, since before they entered the academy. She is the daughter of a priest at Yokosuka’s Suwa Shrine (dedicated to the deity of academic success) and used to serve as a shrine maiden. Her mother works as a barber in addition to her other duties. She possesses an astonishing, latent talent for dowsing; she is a "lucky girl"—reminiscent of a certain ocean-going ship captain—who once struck oil on the playground in elementary school and discovered a hot spring in the school's backyard during junior high. It was actually the results of her dowsing that led her to aim for the maritime academy. She is skilled at rapid smartphone typing, a talent that proves useful for maintaining communication logs. An avid reader who loves gathering information, she is constantly reading e-books.

Nanami Yamashita

Megumi Uda

Pendukung

Female · Gol. darah AB

Height: 148 cm (4'9") Her trademark is an X-shaped hair accessory. Like Akeno Shima and the others, she loves curry—specifically, authentic Indian-style curry. Because she prefers the real deal, she is particularly fond of dishes like chicken masala and keema curry, and she likes eating them with naan bread. Her hobbies include photography and amateur radio; she developed an interest in the latter after tinkering with radios alongside her grandfather. She has a strong preference for film cameras—partly because she owns a film camera that was a keepsake from her grandfather—but since the Harekaze lacks developing facilities, she brings a digital SLR on board instead. She says she simply loves the mechanical aspects of the equipment. On the Harekaze, she serves as the electronic detection specialist—essentially, the radar operator. The radar system was installed after the ship's initial completion; the radar screen itself isn't located on the bridge, so she operates from a small room added to the rear of the bridge and relays reports via a voice pipe. She has been friends since junior high school with Tsugumi Yagi, who handles telegraphy (wireless communication) in the adjacent room. Although she is aware of Tsugumi's uncanny dowsing abilities, she remains a skeptic and a realist.

Akane Fujita

Machiko Noma

Pendukung

Female · Gol. darah O

Height: 165 cm (5'4") A classmate of Akeno Misaki, she serves as a lookout in the Navigation Department aboard the Kagerou-class ocean-going training vessel Harekaze; she chose this role partly because it does not require much conversation with others. Perhaps due to her background at the Shibu Pass Observatory in Gunma Prefecture—located near the highest point on a Japanese national highway—she is depicted parasailing on several occasions throughout the story. She displays superhuman physical capabilities: she detects incoming fire from the instructor ship Sarushima before impact; stands upright on the Harekaze's yardarm (essentially a pole just over ten centimeters in diameter) to send semaphore signals; and spots a ship 30 kilometers away with the naked eye, even correctly identifying its name. Her physical prowess stems from her background at the observatory; constantly gazing at the stars improved her eyesight, while running through the mountains of Gunma since childhood honed her physical strength. Incidentally, she wears glasses to correct farsightedness, meaning her actual vision is quite sharp. For this reason, she often pushes her glasses up onto her forehead while on lookout duty to better spot distant targets. This also explains why she sits at the very back of the classroom; sitting closer would actually make it harder for her to see. She is popular among the girls, and there are fans of hers aboard the Harekaze. Miumi Tōmatsu is particularly fond of her, amassing a collection of photos of Machiko (who seems quite pleased about it). She gained fans aboard the Schee as well.

Yuu Kobayashi

Hime Wazumi

Pendukung

Female · Gol. darah AB

Height: 152 cm (5'0") She serves as the Damage Control Officer aboard the Harekaze, responsible for the maintenance and repair of shipboard facilities. She enrolled in the Marine High School for Girls to put her skilled craftsmanship to use. However, she struggles with the mathematics required for managing supplies and fuel. She has a somewhat nagging personality and considers dieting an essential part of daily life. She is dexterous and skilled at manual work; she is particularly adept at building ship-in-a-bottle models. Since boarding the Harekaze, her busy daily schedule has prevented her from working on her ship-in-a-bottle models—a source of frustration for her. She has been close friends with Momo, a fellow damage control crew member, since junior high school. Her parents are from Kanda, and she is a festival enthusiast whose blood stirs at the mere mention of one; having helped build mikoshi (portable shrines) during junior high, she even constructs her own. Incidentally, she was born in Yokosuka.

Hiyori Nitta

Momo Aoki

Pendukung

Female · Gol. darah B

Height: 154 cm (5'1") Aboard the Harekaze, she serves as a damage control specialist alongside Himoe Wazumi, a close friend since junior high. She tends to end her sentences with the suffix "-ssu." As the daughter of a clothing store owner, she excels in areas related to apparel and sewing, such as home economics. She has aspired to be a manga artist since childhood and loves both reading and drawing manga; she writes most of the Harekaze's shipboard newsletter, and her serialized comic strip is reportedly very popular. Before enrolling, she was torn between taking over the family clothing business and pursuing her passion for manga. However, after her mother suggested she "try doing both," she set her sights on becoming a Blue Mermaid—a career that would allow her to draw manga and work in fashion while ensuring a stable income. She creates four-panel comics featuring the Harekaze crew and is planning to sell them at a doujinshi convention. She puts her artistic skills to good use in various ways, such as painting cute seal faces on minesweeping gear and creating posters and booklets to encourage water conservation.

Ayuru Oohashi

Mikan Irako

Pendukung

Female · Gol. darah O

Height: 151 cm (5'0") She loves photography and cooking—especially cooking. For her, the role of "cooking specialist" on the galley crew is a perfect fit. However, because she is so particular about her cooking, she sometimes spends too much time on it, causing delays. She has a competitive streak; she might impulsively claim she can make a dish she’s never actually cooked before, only to secretly look up the recipe later. Her love for cooking and her goal of becoming a Blue Mermaid were both inspired by TV dramas. She has been close friends with Homare Kinezaki, Akane Kinezaki, Maron Yanagihara, and Hiromi Kuroki since before they entered the school. While generally kind, her speech and mannerisms can be a bit sharp, leading some to label her as "scheming" or "two-faced." Despite her small stature, she is quite strong. Her dream for the future is to become a wife.

Momo Asakura

Homare Kinesaki

Pendukung

Female · Gol. darah A

Height: 156 cm (5'1") She is the older of a pair of twin sisters; her family runs "Kinezaki-ya," a branch of a traditional Japanese confectionery shop in Yokosuka that has been in business since the Meiji era. Her hobby involves reading a collection of Edo-period recipes she acquired as a child and reviving the traditional methods for making Japanese sweets. She also tends a small vegetable garden aboard the Harekaze, growing shiso and green beans. Like Mikan and her younger sister Akane, she helps prepare meals for the ship's crew. Given her background in a confectionery shop, the school asked her to serve on the Mamiya upon enrollment, but she declined the offer alongside Akane.

Kanae Itou

Akane Kinesaki

Pendukung

Female · Gol. darah A

Height: 156 cm (5'1") She is the younger of a pair of twin sisters; her family runs "Kinezaki-ya," a branch of a traditional Japanese confectionery shop in Yokosuka that has been in business since the Meiji era. She used to help out at the family shop alongside her older sister, Homare, but she grew tired of Japanese sweets—and developed a preference for Western-style pastries—after being forced to help cover up Homare's failed confectionery experiments. She is fond of a recipe book from a top-tier hotel in Yokohama. She has a personality that makes it impossible for her to say no when Homare asks for a favor. Like her sister Homare and her friend Mikan, she is responsible for preparing meals aboard the Harekaze. Given her background in a Japanese confectionery shop, the school requested that she serve on the Mamiya upon enrollment, but she declined the offer, just as Akane did.

Kanae Itou

Minami Kaburagi

Pendukung

Female · Umur 12 · Gol. darah O

Height: 143 cm (4'7") She serves as the Medical Officer aboard the Harekaze and is known by those around her as a "mad scientist." She has a fondness for kango (Sino-Japanese idioms)—much like intellectual types from the East often favor classical Chinese terms, just as their Western counterparts favor Latin—and frequently incorporates four-character idioms and classical sayings into her conversation. However, she does not unconditionally love Chinese culture; for instance, she dislikes mapo tofu. She prefers to add salt to her cocoa. In reality, she is a genius whose intellect far surpasses ordinary human limits; she displayed scientific talent before even entering elementary school, skipped grades to advance through the Maritime Medical University—completing her undergraduate studies in two years and graduate school in three—and even earned a doctorate. However, because of this accelerated path, she had not yet completed the maritime training credits required for her professional qualification. Consequently, she was hired by Yokosuka Girls' Marine High School as a school nurse (not a student) and assigned to the Harekaze; this explains why her uniform differs slightly from that of the other students. A downside of her extreme grade-skipping was that she had no close friends. Initially, she viewed the ship merely as a means to earn credits—thinking, "It could be a raft or anything else for all I care"—but a sense of camaraderie gradually developed. By the time of the Equator Festival, she remarked, "I’m the only one who hasn't done anything [for everyone]," and requested a choral performance of "Ware wa Umi no Ko" (I Am a Child of the Sea)—a song that, while a children's folk song, is also a Navy anthem whose lyrics were once ordered deleted by the GHQ.

Kana Asumi

Wilhelmina Braunschweig Ingenol Friedeburg

Pendukung

Female · Gol. darah A

Height: 162 cm (5'3") The executive officer of the Deutschland-class ship "Admiral Graf Spee." She has a down-to-earth, sturdy, and serious personality. She refers to herself as "Washi" and speaks with a dialect resembling Hiroshima-ben (often ending sentences with "ja"), a manner of speaking she picked up from watching yakuza movies. She also frequently adds the prefix "do-" (an intensifier) ​​to words. According to Mina, the Spee was en route to a joint exercise with Japan when the ship's electronics suffered a mysterious malfunction and the crew stopped obeying Captain Thea Kreutzer; acting on Thea's orders, Mina escaped the ship to report this abnormal situation. She and Thea have been best friends since junior high school, and Thea entrusted her captain's cap to Mina upon her escape. Aboard the Harekaze, she shared a cabin with Mashiro Soya and remarked that the room—filled with stuffed animals—was wonderful. She bonded with Sachiko Nosa over their shared taste in movies, leading them to engage in quirky banter and impersonations together. Incidentally it is standard practice for students at maritime schools to go abroad for open-ocean training during their second year. As such, Mina is a second-year student, making her a senior by one grade level to all the crew members of the Harekaze.

Hiromi Igarashi

Ritsuko Matsunaga

Pendukung

Female · Gol. darah B

Height: 156 cm (5'1") Responsible for operating and firing the No. 1 torpedo tube on the Harekaze. Although she has a laid-back personality, she excels at bowling, an interest influenced by her mother—a top-tier professional bowler in Japan. She first met fellow bowling enthusiast Kayoko Himeji when they competed against each other in a tournament; the two have since become best friends. She aspired to become a torpedo operator after observing the movement of torpedoes traveling underwater and sensing a similarity to bowling. Her family runs a long-established hot spring inn in Gunma Prefecture—a landlocked region—and she was originally expected to succeed her mother as the inn's proprietress; however, her family allowed her to enroll in the maritime school after she expressed a strong desire to do so. Perhaps due to her experience helping out at the inn, she is skilled at calculations. She is one of only four (or possibly five) crew members aboard the ship who hold a medium-sized vessel skipper's license.

Yuka Maruyama