From the very first day in his new apartment, Joon was captivated by his neighbor Mira — a girl of rare beauty. Yet she seemed indifferent to him, always teasing and never taking him seriously. But soon, Joon is about to discover something that will completely change everything he thought he knew about her and himself.
He despises romance and avoids emotional attachments, but at a Valentine’s Day costume party, he accidentally finds the perfect girl. The perfect stranger turns out to be his stepsister.
