A Dark Secret Untold

There was a murder at the school, and now everyone is considered a suspect. The string of murders can only lead to one thing... that someone is out for revenge. The problem is that no one knows who. Katsuyuki Sanada, son of Yukimura Sanada, has a gut feeling about who's done it. But soon three clues come up, and everything leads to the next victim... or the murderer. OC's WANTED!