![](https://cdn.animecharacters.io/images/characters/large/74533-42247c01.jpg)
Kouichirou Nobuto (登戸 孝一郎)
Sana's father and a scientist involved in the development of the Gladiators. However he was killed in his home before the story began, with his murderer still unknown.
Voice Actors
Christopher Ayres
English
Dai Matsumoto
Japanese