![](https://cdn.animecharacters.io/images/characters/large/18415-a97b9cae.jpg)
Manabu Sakuma (佐久間 学)
Demon is a childhood friend of Peco's and a member of the Kaio Academy table tennis club. Despite being Peco's friend, Demon is also his rival.
Demon is a childhood friend of Peco's and a member of the Kaio Academy table tennis club. Despite being Peco's friend, Demon is also his rival.