Hitman Taiga is saved by Hibiya, a flower shop owner, when he finds himself on the streets after fleeing from his organization. He must hide his past as a hitman, but his love for this gentle man only grows stronger. Then, one day, he gets to see Hibiya's well-built body drenched by the rain!! As he is mesmerized by this unexpectedly muscular body for such a gentle man, Hibiya asks him if he wants to touch him... Then, he gets french kissed...!? An eventful love comedy between a mysterious flower shop owner and a cute puppy-dog assassin☆