This is the story of a man known only as Gen, who used to be an assassin. Nobody knows his past, his real name or his age, only that he is now working at Tsubakiya, a secluded onsen inn. He had put down his weapons and intended to lead a quiet, peaceful life, but it seems his past is not willing to let him go so easily. The onsen inn gets guests from all walks of life, and anything can happen. Som
