Atsushi Miyagawa
Utama
The protagonist. A 5th grade elementary school student who is very tall (180cm tall) and has a grown-up appearance. He is often mistaken for a teacher or parent, however Atsushi acts his true age.
Ryoutarou Okiayu← Kembali ke detailRyoutarou Okiayu 
Rie Kugimiya
Aya Hirano
Tomoe Tamiyasu
Aya Uchida
Takahiro Sakurai
Yoshino Nanjou
Chiharu Kitaoka
Nanami Kashiyama
Sayako Toujou
Satomi Akesaka
Hideyuki Kanaya
Fuuko Saitou
Kanami Satou
Tomohisa Hashizume
Karakter & Staf
Recorder and Randsell Re
Karakter
Ryoutarou OkiayuAtsumi Miyagawa
Utama
Atsushi's sister. A high school sophomore who is quite short (137cm tall) and has a childlike appearance. She is often mistaken for an elementary school student. Atsumi takes good care of Atsushi, who acts his true age.
Rie KugimiyaSayo
Pendukung
Umur 17
Height: 165 cm Atsumi's best friend. She has a crush on Atsushi despite his age.
Aya HiranoFutami Moriyama
Pendukung
Tomoe TamiyasuHina-chan
Pendukung
She is one of Atsushi's classmates.
Aya UchidaTake-nii
Pendukung
Atsushi and Atsumi's next door neighbour whose face is never seen. Currently unemployed.
Takahiro SakuraiTetsuya
Pendukung
Yoshino NanjouTakumi
Pendukung
Chiharu KitaokaMidori-chan
Pendukung
Nanami KashiyamaJun-chan
Pendukung
Sayako ToujouPolice Woman
Pendukung
Satomi AkesakaSensei
Pendukung
Hideyuki KanayaMakimura-sensei
Pendukung
Fuuko SaitouMother Miyagawa
Pendukung
Kanami SatouFather Miyagawa
Pendukung
Tomohisa HashizumeStaf
Meme Higashiya
Original Creator
Hiroshi Kimura
Director
Naruse Takahashi
Character Design
Sayako Toujou
Theme Song Performance