[Machine Translation] Invincible Assassin "Retired " Legend, Aiming to be ordinary, as a professional--! Invincible Assassin "Retired " Legend, aim for the ordinary, as a professional--! Both my brother and sister live in the same era as us. My brother, a former hitman, is now The Rental Old Man. Akira, who retired as a hitman after being relieved of his duties by his boss, married Misaki. They start their new married life in a corner of Taiheiyo City.... Meanwhile, Yoko joins Azami and Yukari. Peaceful life begins, but then Kuro gets into a fight, and the mood turns sour....