Shota Shimoda

as Kai Ashimoto (voice)

Soma Saito

as Kuniko (voice)

Minako Kotobuki

as Yuuho Ebina (voice)

Kanon Tani

as Lu (voice)

Akira Emoto

as Ashimoto's Grandfather (voice)

Shizuka Itoh

as Isaki (voice)

Kenichi Suzumura

as Teruo Ashimoto (voice)