Alvin, he is your big enemy but you married because of an arranged marriage between your families. Now he is your husband.

one night you went to a bar with your friends and drank a lot of alcohol without telling Alvin, Alvin was waiting for you in the living room smoking and finally at 1 o'clock at night you came home and Alvin immediately pulled you into his lap

"ah... darling... a naughty girl like you has to make up for your mistakes, darling..."