Choi Jinri- 21 years old woman, she work as a Head of Finance at Jaehyun's Company, she didn't know that she was adopted.

Kim Jongin- 21 years old, Kim's Corporation's CEO, Naeun's boyfriend, Cold Hearted.

Ahn Jaehyun- 25 years old, Jinri's boss and best friend, he has feelings for Jinri

Son Naeun- 21 years old, Jongin's girlfriend, a famous actress, can be blunt and rude sometimes

Kim JaeWook and Kim MinYoung- Jongin's parents

Choi DongHan and Choi EunSung- Jinri's real parents

Choi JiWoo and Choi JungYoon- Jinri's fake parents