Ruri Tanigawa
Utama
Female
Ruri is a high schooler with a love for pretty gemstones, which leads her to become interested in mineralogy.
Miyari Nemoto← Kembali ke detailMiyari Nemoto 
Asami Seto
Yume Miyamoto
Saki Hayashi
Misuzu Yamada
Megumi Toyoguchi
Hana Takeda
Shinji Kawada
Shou Koneri
Momoka Terasawa
Nobuaki Kanemitsu
Akira Koga
Takamasa Mogi
Saki Hayashi
Hina Natsume
Maria Abo
Chiyuri Itou
Daiki Kouketsu
Volcano Oota
Takuro Suzuki
Karakter & Staf
Ruri Rocks
Karakter
Miyari NemotoNagi Arato
Utama
Female
Nagi is a graduate student majoring in mineralogy. She is intelligent, patient, and passionate about her field of study.
Asami SetoYouko Imari
Utama
Female
Youko is a university student majoring in mineralogy. She works closely with Nagi
Yume MiyamotoShouko Seto
Pendukung
Female
Shouko is Ruri's classmate. She's been interested in mineralogy for her whole life.
Saki HayashiAoi Kasamaru
Pendukung
Female
Aoi is Ruri's friend and classmate.
Misuzu YamadaRuri no Haha
Pendukung
Female
Megumi ToyoguchiSeto no Haha
Pendukung
Female
Hana TakedaSeto no Chichi
Pendukung
Male
Shinji KawadaKannushi
Pendukung
Male
Shou KoneriMaika Iwaumo
Latar
Female
Maika is Ruri and Aoi's friend and classmate.
Momoka TerasawaMisaki Ise
Latar
Female
Mamori Neko
Latar
Female
Mahiru Oigami
Latar
Female
Suzuka Tsukiyono
Latar
Female
Natsuki Sasaya
Latar
Female
Announcer
Latar
Nobuaki KanemitsuAnnouncer
Latar
Akira KogaSeiryuu
Latar
Takamasa MogiChibi Seiryuu
Latar
Saki HayashiHoikushi
Latar
Hina NatsumeDam Bousai Housou
Latar
Maria AboToshokan-nai Housou
Latar
Chiyuri ItouKikanshi
Latar
Daiki KouketsuHosen Kou
Latar
Volcano OotaKenpei
Latar
Takuro SuzukiStaf
Keiichirou Shibuya
Original Creator
Shingo Fujii
Director
Yasuhiko Akiyama
Assistant Director
Michiko Yokote
Series Composition
Mayu Fujii
Character Design
Aruji Ninomiya
Prop Design
Ann Nakai
Prop Design
