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Ishui Hyoudou is an older brother of his perverted younger sibling, Issei Hyoudou, Issei even wanted to try to drag his older brother to a path of debauchery like him, but Ishui just laughed and admired his idiocy, Ishui had a lot of hobbies but always single because he didn't want to engage in a relationship and he wanted to wait for a perfect partner

and one day he heard about his younger sibling had a date and he congratulated him but he felt something wasn't right

and he was right