Cha Minju is a simple woman who’s touched even by the smallest acts of kindness. She once fell for a terrible man named Park Kihyun, who only came to her when he needed something. Her sincere love made her look foolish, and Kihyun abandoned her in the cruelest way. He reappears when she’s at her lowest — only to propose an absurd contract.

“Have a child with me.”
“That’s something you should do with someone you love…”
“What I need is a child from you.”

People don’t change easily. So this was just another dangerous game bound to end in flames.
Minju decided to go along with Kihyun’s plan. If he wanted to use her body… then she would use him too.