Taro Sakamoto was once a legendary hit man considered the greatest of all time. Bad guys feared him! Assassins revered him! But then one day he quit, got married, and had a baby. He's now living the quiet life as the owner of a neighborhood store, but how long can Sakamoto enjoy his days of retirement before his past catches up to him?!

It's the legendary fighter Hyo and sniper Heisuke versus the magnetic Kumanomi! Who will emerge victorious in the fierce battle between three assassins with different styles of killing? Meanwhile, at the abandoned warehouse where Slur is hiding out, Akao confronts the man who murdered her aunt!