きっと狙った目標を達成できるだろう。 Im sure well get the target we e after. Shotaro, a ruthless killer, code name S. But one day, the target is the leader of the Waruiyogumi gangs only daughter - Furukawa, 17 years old. The moment he points the muzzle at her, he feels something he never felt before! Shotaro feels his heart grow... A genius killer, now a young girls bodyguard? The heartful killer comedy begins.