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 an assassin showdown! Shishiba and Osaragi take on Yotsumura and his geisha on the streets of Kyoto. What happened between Shishiba and Yotsumura in the past to sour their mentor-disciple relationship? Meanwhile, chaos engulfs the JCC as the battle between Sakamoto and Kanaguri comes to a head!