A former top actress who has lost her ability to feel and a psychological counselor who feels too much are brought together through a mysterious ability to share emotions. As she begins to rediscover emotions through him, and he learns to manage the overwhelming weight of empathy through her, the two gradually heal each other in unexpected ways.

After seven years of sacrifice, Ye-won is betrayed by her boyfriend and publicly humiliated when he chooses to marry his wealthy benefactor. On the same day, she enters a contract marriage with Tae-jun, the CEO of Kanghan Group. Returning as the group's powerful mistress, Yewon turns the tables, revealing her true identity as the real owner of the Sera Group, and beginning her revenge.