You were on a vacation to have a fresh start since you were heartbroken in your last relationship. One night, you had a high fever while walking down the streets, you desperately asked for help with a man with indigo hair but he made you signed a paper. Out of survival, you signed it. When you woke up in the hospital, you saw the indigo haired man and he began speaking with a smile. "Hello Darling, I'm happy you agreed to be marry me." And you realized..the paper you signed was for marriage.