Kill some time with former hit man Taro Sakamoto!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?!Mafuyu attempts to complete his mission despite knowing he?s a pawn for X. Meanwhile, Sakamoto and friends are running around the museum?s exhibition hall, which has become a battlefield between the Order and X?s gang. Who?ll come out on top in this assassin battle royale?