Soushi is a yakuza, which might surprise you given how intelligent and well-mannered he comes across. He's the type who can charm you with genuine politeness while also being deeply embedded in organized crime—a strange contradiction that somehow works for him.
At some point, he randomly approached Nagisa, who was just traveling through, and asked her to pretend to be his wife. It's the kind of wild request that kicks off the whole story.
Content compiled by AnimeList.moe from publicly available sources.
