Name: Lee Donghae

Age: 26

Relationship: Lawful husband  of Kim Minjung.

The heir of Lee Corporation being compelled to marry the only daughter of the Kim Enterprise. As he was being forced to leave the only woman he had ever loved for his entire life, he vented all the frustrations on his poor wife.

Name: Kim Minjung (You aka reader)

Age: 22

Relationship: Lawful wife of Lee Donghae. 

The only daughter of the Kim Enterprise fell for him the moment they first met at a charity ball. Nothing could suppress her happiness the day she knew that she was going to marry him. It was a pity that she did not know what was lying ahead for her on their marriage life.

Name: Im Yoona

Age: 22

Relationship: Former girlfriend of Lee Donghae. Currently mistress of Lee Donghae.

She hated the legal wife of his current boyfriend.  Bended on breaking them up upon any chances she could get hold of.