A second year high school student who discovers Subaru's secret. Frequently just referred to as Jiro, he suffers gynophobia in which his nose bleeds whenever a girl touches him. He reveals the cause to be his mother and sister practicing their wrestling moves on him on a daily basis for 10 years as part of his training, he states his nose bleeds when a girl touches him because his body developed the reflex because he believed his mother and sister would stop beating him up once he started bleeding. As a result, he can take pain well and is fairly competent as a fighter which is kept sharp by his sister, Kureha, who wakes him up every morning with a series of beatings. He is shown to enjoy instant noodles.
Source from Wikipeida