NO MAN, NO TROUBLE! Lizzy worked for Eric for eight whole years, dedicating everything she had to become his best assistant, even becoming one of his bed companions... But when Eric's first love returns, he unexpectedly proposes to give Lizzy to another man! Heartbroken by this desperate love, Lizzy firmly decides to leave him and begins to pursue her own business investment plans. She becomes a millionaire on her own, making a new rule for herself: no man, no trouble! However, the domineering CEO Eric doesn't stop pursuing her, and her handsome neighbor, Merleman, continuously stirs her heart. In order to win her over, Merleman intervenes in the tangled relationship between Eric and Lizzy, slowly earning her affection. Just as they confess their love for each other, Lizzy discovers his biggest secret...