There's nothing exceptional about Watase-kun, just an average high school student - except for the fact that his personal belongings are mysteriously being vandalized each day after school. Despite the lack of clues, he decides to investigate and put a stop to it. But to his dismay, yet another item goes missing. Frustrated, he resolves to catch the culprit in the act. Little does he know, this discovery could alter his perspective on life as he knows it.