Seohyun was a bright and beautiful girl with a happy family but her life change when her father own Luhan's family money and she have to marry Luhan and produce them a child for the debt her father own them to end. Luhan on the other hand just do what his parent told him because he love them. He never love anyone after his first heartbreak. Can Seohyun endure being with Luhan? Can Seohyun pay off the debt by giving them a child? Or are they going to fall for each other during the marriage?

Xi Luhan

Sweet, kind, and caring guy

Heartbroken when his first love left him 

Agree to married Seohyun because he don't want to dissapoint them

He can be really mean 

Son of the richest person in Seoul and is the only child

Kwon Seohyun

Kind, pretty, caring, and lovely girl

She love her family and do everything for them, a good girl, she hide her sadness, hurt, and problem from everyone since she don't want to make them worry about her. 

Agree to married Luhan because her dad want her to.

She have a older sister Kwon Yuri

Kwon Yuri

She the opposite of Seohyun and is older 

She got everything she want and their parent love her more than Seohyun so that why their parent make Seohyun marry Luhan instead even though Seohyun is younger

She secretly like Luhan and determine to make him her even though he is her brother in law and she know they marry because of money so she doesn't care about breaking her sister and Luhan apart.

Choi Minho

He nice, handsome, and caring

He protective and supportive of Yuri and Seohyun

He is Seohyun's childhood friend and have a secret crush on her 

Heartbroken when Seohyun have to married Luhan

Im Yoona

Luhan first love that left him to persue her career as a singer and actress

She is both mean and kind, really beautiful, and still love Luhan

She now a famous Singer and Actress in Seoul