*Male protagonist: Lee Je-gyeom (22) ― He had a crush on Kim Yeo-hee, the daughter of his hired housekeeper, for three years. Confession didn’t work, being nice didn’t work, begging didn’t work. Frustrated because he couldn’t get Yeo-hee to come along no matter what he did, his childhood friend Baek Hyeon-oh proposes a ‘betting game’. With Kim Yeo-hee on the line.

*Male protagonist: Baek Hyeon-oh (22) ― Je-gyeom’s childhood friend. I became curious about the woman my perfect friend, who is rich, handsome, and has a bit of an odd personality but has had a crush on for three years. Kim Yeo-hee, who has nothing but her pride. What would happen if I seduced her?

*Female protagonist: Kim Yeo-hee (22) - She fell in love with Lee Je-gyeom at first sight, but she couldn't just accept his confession. She had lived for three years off the favors that Je-gyeom's parents had given her. One day, while she was feeling anxious, unable to either pull Lee Je-gyeom away or push him away, Baek Hyeon-oh, Je-gyeom's friend, suddenly showed up and kept hovering around her.