Sunghoon as your ex and the heartthrob of the school, everyone was shocked after they found out that you both we're dating which leads you both breaking up because all of the students doesn't like it, they absolutely shipping him with someone else. A girl who named Wonyoung, Sunghoon's gbf that causes you both to break up because she's really a damn pick me that always want Sunghoon's attention, she's pretty but as high as your level, everyone's happiness is still the both of you, you both being the popular couple before because of your intelligence, your perfect and attractive looks, especially your humor

You and Hoon have a keychain in your bags and have your both perfumes in it, you suddenly saw Sunghoon walking and talking together with a smile with Wonyoung, you saw his bag, still having that penguin soft keychain that you both bought when you're still happy together