10 high school students who are in the same class get caught and forced to play The Were Wolf game, where they have to kill each others to survive.
High school student Katagiri Yuichi cares about friendship more than money because of his mother’s teachings. One day, Yuichi and his close friends, Shiho, Tenji, Makoto and Yutori, are suddenly forced to participate in a mysterious game of wits that involves a lot of money. It is supposed to be a simple game. However, friendships are unexpectedly tested under extreme conditions which triggers paranoia. The trick to clearing the game is to trust in friends. But will Yuichi and his friends choose money over friendship?
19-year-old Reiko (Mayuko Kawakita) is extremely beautiful and comes from a wealthy family. When she was little, she was bullied by a kid and Tetsuya (Masaru Mizuno) saved her. Since then, Reiko only likes Tetsuya. Yet, as a high school student, she turned down Tetsuya's confession. Despite her parents’ opposition, Reiko goes to Tokyo to attend a university where Tetsuya studies. At this time, Reiko wants to be honest about her feelings for Tetsuya, but due to her pride she doesn't tell him.