Watashi no Keiyaku Kekkon ni wa Uso ga Aru.

Ugly, penniless, and unloved, 18-year-old Youko Moji is ready to end it all. But as she takes the final leap, a pair of arms drag her back. Youko's savior is Kagami Kirihara, a handsome young man who lives in an expensive highrise apartment. He offers her a strange proposition: enter a contract marriage with him, with the only stipulation being that she must get cosmetic surgery to reflect his ideal partner's face.

Youko takes him up on the offer, and, six months later, she is happily married. However, on the news one evening, she learns of an unsolved murder case from 10 years ago—and the victim has the exact same face as Youko, right down to the mole under her eye. Kagami claims that the victim was his first love, and Youko wants to believe him. But could there be a lie hiding within their contract marriage?