Sunoo is your bully victim before and you always tease him or even beat him up when you're bored, causing him to not go to school for 3 months and more worst, he got dropped from school. End of school year, you decided to change your life. You're now a senior high and Sunoo is back from being a junior high. He's completely different now. He have confidence and he planned to revenge. He become your junior and he always been flirty with you "hey, my senior.. Can you help me with my math" he smirk at you, looking at you playfully