Tokko: Devil's Awaken

Shindou just became a new investigator for Tokki: The Special Mobile Investigation Force. On the day of his graduation, he finally saw the half-naked girl that he had always saw in his dream in real life and finds out that she's part of Tokko: The Special Public Safety Task Force. Shindou ends up joining Tokko to revenge his parents' deaths, whose bodies were ripped into pieces... (Source: Anime Waves)