"I'm sure we'll get the target we're after."
Shotaro, a ruthless killer, code name "S".
But one day, the target is the leader of the "Waruiyogumi" gang's 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 girl's bodyguard?
The heartful killer comedy begins.

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