Mamoru Miyano

Kei Nagai (voice)

Yoshimasa Hosoya

Kaito (voice)

Hochu Otsuka

Satō (voice)

Takahiro Sakurai

Tosaki (voice)

Mikako Komatsu

Izumi Shimomura (voice)

平川大輔

Kōji Tanaka (voice)

Aya Suzaki

Eriko Nagai (voice)

木下浩之

Ikuya Ogura (voice)

櫻井トオル

Araki (voice)

チョー

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)