Haunted by childhood trauma, Cheng Yu'an has shut himself off from the world. One rainy night, he takes in Lin Qi and they begin living together under a "master and pet" contract. But the gentle Lin Qi keeps breaking the rules, prompting Cheng Yu an to make exceptions, even going so far as to defy his family for him. As Lin Qi searches for the truth behind his father's death, Cheng Yu'an's buried secrets begin to surface. From offering him shelter to being unable to let him go, who will surrender his heart first in this game of taming? A cold-hearted lawyer and a gentle artist in a steamy romance. From pet to lover, who falls first?