落合 円

The older sister of Ayako, and is the current secretary of Eiichi. 

She has earnestly loved Eiichi ever since they were children, but instead of her, Eiichi chose her younger sister as his bride. Even so, she convinced herself that Ayako is the household partner while she is the business partner. 

Shinji, who she has scorned all this time, raped her as if she was garbage when their situations reversed, with the company needing his money. Moreover, her pride, which hides her strong desire to depend on others, was seen through by Shinji, and thus her heart and body was trained to be that of a masochist's. 

"It's vexing... that I have to follow this worthless loser's orders!!"

Getchu