Byun Baekhyun is a male student who was quiet, a bookworm, a nerd with ugly glasses, poor, always being bullied at school, and a victim of bullying by Park Chanyeol with no friends, making him look like a fool. But no one knew that behind the ugly exterior, he was a cheerful kid, talkative, sweet, kind, caring, intelligent, cute, beautiful, and from one of the richest families in the world. He will be married to the man most feared by everyone in the school, Jung Daehyun.

Jung Daehyun is a male student, unlike Baekhyun. His personality is naughty, nasty, violent, worse, lacks compassion, loves to fight, skips classes, does not follow the rules, and is stubborn and rowdy. But despite appearing that way on the outside, he is actually a good, loving, gentle, forgiving, sweet, and responsible man. He will be married to a man who has been the victim of bullying by Park Chanyeol and others, Baekhyun.

Park Chanyeol is a bully who has a crush on Baekhyun but is slow to notice it. He likes to bully Baekhyun and used to be best friends with Daehyun in the past, but now they are enemies. Chanyeol is a gang leader named Exo and is rebellious and violent, but deep down, he can be a nice guy but refuses to show it. Soon he finally notices his feelings towards Baekhyun, falling in love with him. It's no wonder why he feels so angry when he sees Baekhyun happy with Daehyun. Chanyeol wants Baekhyun to be his, which leads him to make a plan to take Baekhyun away from Daehyun. However, one secret he doesn't know, and others are unaware of, is that Baekhyun is already married to Daehyun.

And so, the love triangle between Daehyun, Baekhyun, and Chanyeol begins. Who do you want Baekhyun to end up with in the end?