![Manabu Sakuma](https://img.mreadercdn.com/_m/400x400/100/92/1a/921a8c0a73086ab99d5129ea440e1ced/921a8c0a73086ab99d5129ea440e1ced.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.
Manga
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.