Kokko is a third grade elementary school student. Even though she has a family who loves her, Kokko is full of dissatisfaction and she admires loneliness.

Mana Ashida
as Kokko

Norito Yashima
as Kanta

Aki Hano
as Shiori

Misato Aoyama
as Riko / Mako / Tomomi

Jingi Irie
as Morikami

Ryuhei Maruyama
as Jibiki

Mikijiro Hira
as Ishita

Ayumi Ishida
as Kamiko

Shu Ito
as Po

Haruto Yoshida
as Po's Older Brother