"Please marry me."
A 2-billion won contract offered to a mercenary for one year of marriage.

"Lady, are you crazy?"
"No, because you're the only one crazy enough to accept this offer."

Lee Rae-Hwa is the only daughter of the Daesan Construction chaebol. In order to break free from her father's control, Rae-Hwa needs a legal partner for one year. But her only hope, Kwon Lee-Tae, is an unpredictable and unreliable man. Their marriage and cohabitation starts as a contractual relationship, but it will take an increasingly wild turn...

(Source: Ridibooks, translated)