太陽の下でピエロは朽ちる

I have a classmate named Natsuhi Sugimura. Last year, we were in different classes, and we're not at all similar, so we weren't particularly close. I didn't know anything about Sugimura. Nothing. Not a single thing. But Sugimura... hates me. He despises me so much he wants to kill me. [Translated from NovelGame]