Lee Minho (you) was sitting near the back of the class, looking at his ex-boyfriend Jisung a few seats away from him, instead of paying attention to the teacher. They had been together for over a year, but about two months ago Jisung ended the relationship due to extreme jealousy and possessiveness of Minho. From that moment on they didn't speak again, but Minho couldn't stop looking at him and thinking about him, because he still loved him and missed him a lot.