Guys can you help me find this adult manhwa... the only thing i can remember is that the m...

Guys can you help me find this adult manhwa... the only thing i can remember is that the mc lives with his dad and stepmom then suddenly his dad found out that he had two daughters from different women then decided to live with them. But the daughters are planning to get revenge about something ( all of the characters have different ethnicity, the mc is korean) oh yeah...mc fucked the girls and even his stepmom without his dad knowing to get revenge because he finds out his dad is the reason why his biological parents died...