Mamoru Miyano

Kei Nagai (voice)

Yoshimasa Hosoya

Kaito (voice)

Hochu Otsuka

Satō (voice)

Takahiro Sakurai

Tosaki (voice)

Mikako Komatsu

Izumi Shimomura (voice)

Daisuke Hirakawa

Kōji Tanaka (voice)

洲崎綾

Eriko Nagai (voice)

Hiroyuki Kinoshita

Ikuya Ogura (voice)

櫻井トオル

Araki (voice)

Cho

Teacher (voice)

朝井彩加

Young Kei (voice)

合田絵利

Young Kaito (voice)

KENN

Watanabe (voice)

Ryōta Ōsaka

Keisuke Nakajima (voice)

三宅貴大

Ota (voice)

沢海陽子

Kei’s mother (voice)

稲葉実

Professor Yuji Kishi (voice)

中村章吾

Professor Hiroaki Wakai (voice)