Hiroshi Miwa
, 三輪 ヒロシ
A young individual expresses admiration for Akuto Sai and frequently bothers him with playful banter, referring to themselves as siblings and addressing Sai as the "Demon King." This person consistently claims to be his most devoted supporter.
Spoilers:
Soon it shows that he is the reincarnation of a Hero, who later recovers his powers, becoming a monster-slayer superhero called Brave.
