In 2018, director Sakamoto was working on a script for his new movie "Baby Assassins." He learns of a hitman business network called "Kansai Hitman Association" and applies for interviews as a reference for writing scripts. He is introduced to Masayuki Kunioka, a freelancer who is known as the strongest hitman in Kyoto. Sakamoto decides to follow Kunioka in his day-to-day life. One day, Kunioka kills the wrong person due to miscommunication with the client and is targeted by both the hitmen sent...