When the moon rises, the boys of Knight Hunters are the most vicious assassins the world has ever seen. During the day, they remain disguised as elegant florists with an eye for beauty. Led by the somber and silent Aya, the team consists of Ken, a wide eyed former athlete, Omi, a young computer specialist, and Yohiji, a suave ladies man. Their four tragic pasts give them the passion to fight!