君は放課後インソムニア

森七菜

as Isaki Magari

奥平大兼

as Ganta Nakami

桜井ユキ

as Usako Kurashiki

萩原みのり

as Yui Shiromaru

上村海成

as Tao Ukegawa

安斉星来

as Kanami Anamizu

永瀬莉子

as Motoko Kanikawa

川﨑帆々花

as Mina Nono

工藤遥

as Haya Magari

斉藤陽一郎

as Isaki's Father

田畑智子

as Mother of Isaki's Childhood Friend

Denden

as Director of a Historical Archive

MEGUMI

as Isaki's Mother

萩原聖人

as Ganta's Father