Kim taehyung he is a mafia leader and youngest billionaire in south Korea 26 years old. He married a girl but she died after her death he didn't marry anyone in his life.

Taehyung younger brother a play boy in collage 20 years old love his brother more than anything.

She want to become a doctor. She lived in a village her father is the village leader.

Younger sister of y/n. Childish girl everytime fight with y/n but she love her so much. They are like oxygen and body.