Dan Dan, is a woman who works as a special effects make-up artist but has a very cold-heart. She then, unexpectedly, falls in love with Yeong Goo, a humanoid robot programmed to be a perfect boyfriend. Yeong Goo begins to develop human emotions, and they end up in a love triangle with her famous actor childhood friend, Ma Wang Joon, who also falls for her. ~~Based on the manga Absolute Boyfriend (Zettai Kareshi)