Im Nayeon has always shown to be the perfect student inside and outside the University. A kind, sweet, smart and responsible student council president that everyone knows and adore.  Making mistakes and getting into trouble was never been an option for her.. until one day she found herself dealing with Yoo Jeongyeon—the hot tempered trouble maker guy who was never a fan of Nayeon’s unobvious fake smile. He only see her as nothing but just ‘Miss Perfect in Disguise’