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.

The psychologist Ryou and his cheerful nurse Asuna explain many aspects of mental illness to the reader. They cover topics such as the validity, prevalence, and origins of mental disorders, in addition to addressing specific disorders. The information is imparted in a cheerful and comic manner, with various jokes, puns, and pop culture references. (Source: MU)

Kiss kiss, bang bang! The arms race takes on a startling new development when the arms come with heads, legs and very feminine bodies attached! Yes, at Seishou Academy every girl is literally a lethal weapon, and they're all gunning for the top shot at getting their own personal serviceman! Needless to say, it's going to be difficult for newly recruited human instructor Genkoku to adjust to working with a living arsenal of high caliber cuties with tricky names like FNC (Funko) M 16A4 (Ichiroku) L85A1 (Eru) and SG 550 (Shigu). Especially since many have hair triggers and there's no bulletproof vest that can stop a really determined coed! He'll have to rewrite the operator's manual on student/teacher relationships, and pray that his job description won't include having to field strip and reassemble one of his cadets in the dark. But unfortunately (for him) FNC's already thinking about becoming HIS personal weapon, and she usually gets what she aims for! (Source: Sentai Filmworks)

Bonus specials released together with the OVA.