Prodigy Choi Yeonjun is naturally good at everything, then one-day Huening Kai transfers to his class. He's beautiful, smart, courageous, and most importantly.. not interested. For the first time in his life, Yeonjun finds what he sucks at: Love Join Yeonjun on a journey of first-time crushes, new feelings, embarrassing moments, jealousy and a self-made guide for love.