Psycho+

Midorimaru was born with green hair and rejected of social companionship since birth. Although he claims that he's gotten over his green hair, he often takes strolls at night because it hides his hairs color. One day, as he was taking his usual stroll, he meets Yukino Mizunomori, who said his hair was beautiful. The next day, he finds out that Yukino was dubbed the "Computer Girl" and anyone that beats her at any game can have a chance to date her. Later, he comes across a mysterious game called...