From Weiss Kreuz - Wikipedia, the free encyclopedia Weiß Kreuz OVA: Verbrechen & Strafe
The second Weiß series, "Verbrechen & Strafe" (crime & punishment), is a two-episode OVA that takes place a short time after the end of the anime, and before the events detailed in the last set of Drama CDs. In hiding, Aya, Ken, Yoji and Omi work out of a mobile home, using their flower-selling business as a cover. Their location is never specified, but it is possibly in the area of Yokota Air Base or Camp Zama, which are both American military bases near Tokyo. Their first mission involves a target by the name of Col. Nichol who evidently has his own enemies in a later target for Weiss and a young man named Akira.
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However, Ken and Omi decide to decline the mission to kill Akira after they hear Akira's (and his younger sister Kaori's) story. They only want revenge on Nichol for killing their parents several years before. Kaori was also a classmate of Omi's and the only surviving member of her group of friends, all supposedly killed by Nichol. Kritiker doesn't take to Ken and Omi's defection, and amends the mission. Yoji and Aya are instructed to target their team mates as well.
The OVA is notable because of the darker, bloodier storyline and the higher quality of animation compared to the first series.