Reikan Ryuudou is Issei's older brother and co-manager of Ryuudou Temple. He's got a solid friend group that includes Taiga Fujimura and Otoko Hotaruzuka.
The guy's all about responsibility—seriously, Issei basically idolizes him and tries to live up to the same standard. Reikan's genuinely passionate about martial arts and trains regularly with Souichirou, bringing that same seriousness to both his practice and his temple duties. When Caster ends up staying at the temple, he's uncomfortable with having a woman around, though it's not personal—he just doesn't like the situation itself.
Content compiled by AnimeList.moe from publicly available sources.
