Na Na is a twenty-six-year-old criminal for hire. She neither cares for nor loves anything, but she is a true professional. Her only dream is to go to China. But she will never be the same again when a certain young man becomes obsessed with her. His love succeeds in annihilating her memory and identity forever. Jo Han is a cartoonist who falls for Na Na instantly. He proceeds to pursue herrelentlessly. He lives in a world of his own – selfish and isolated. To keep Na Na to himself, he slips a memory-loss capsule in her drink.