“Baby, in times like this, you should undo the belt first.”

A thrilling contract relationship begins while they hide their true motives from each other, and behind their respective masks, their instincts begin to flare.

Kang Yu-jin, the managing director of Shina Foods, has lived her life believing that proving herself through numbers and performance is everything. To achieve her goal of taking control of Shina Foods, she proposes a contract marriage to Ki Seung-hyun, the CEO of SOO ENM.

Ki Seung-hyun, who lives hiding his beast-like nature, readily accepts the proposal from the woman approaching to use him, and cooperates to play the role of a loving partner.