Yongguk likes naps. Staying up all night chatting with his friends online and studying, he naps through the day in school. Which has worked out fine for him so far. He doesn't want to interact with his classmates. But there's this one guy who always wears a hoodie, who seems to get in trouble with some of the other classmates quite often. He can't help but worry about him. At the same time someone is messing up his things and leaving notes of apology. It's all very confusing