Knight Hunters

When the moon rises, the four young men of Weiss become the most vicious assassins the world has seen. Led by the somber and silent Aya, the team consists of Ken, a wide-eyed former athlete, Omi, a young computer specialist, and Yoji, a suave ladies man. When a rival assassin group replaces a young woman's love with one of their own, when a slave ring begins dealing in Japanese girls, and when a group of wealthy entrepreneurs force men to fight to the death in human chess, the boys of Weiss come forth to hunt the evil men and women of this world.

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Aya, Yoji, Ken, and Omi are the four young men who comprise Weiss Kruez (WK), an assassin group who eliminates certain menaces to society. Each member has his own trademark fighting style. Aya is adept at fighting with a katana, Yoji has mastered the art of strangulation via strings, Ken is lethal with his metal claws, while Omi specializes in a wide array of projectiles. Under the command of a mysterious man known only as "Persia", the WK is dispatched to take care of drug rings, terrorist factions, and the like. But as things go along, they discover that most, if not all, the bad elements they have dealt with are somehow connected to the Takatori family. The Takatori family is rich, powerful, and influential. It seems if the problem is to be nipped in the bud, the WK would have to put an end to one of Japan's most prominent clans.

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Aya, Omi, Ken and Yoji are four seemingly normal high school boys, who make up an elite assassin group known only as Weiss. The hits involve taking out corporate businessmen and corrupt politicians; however, trouble arises during a routine job, when Weiss clashes with a rival gang of assassins, Schwarz. With Schwarz in the way, they will reach the limits of their elite skills while trying to defeat their ultimate target: the Takatori family...