Kang Jihun, the firstborn of the prestigious doctor and cardiologist Kang Hyun-ho and his wife Kang Yoo-Ra

Kang Jihun was born on December 26, 2000.

He lived a very full life until he was 12 years old, when he had to go to a piano recital and his mother was going to see him, she died in an accident caused by a drunk man who was driving.

All this time he has felt guilty of his fate and because the law forgave the man just because he said he was sorry and because he was drunk. This motivated him to study law but his father He was prevented from doing so, although he also wanted to study medicine at some point, he always wanted to be a neurologist and his father pressured him to be a cardiologist like him.

He doesn't get along with his stepmother, Lee Ra-mi, and his half-siblings, a girl named Kang Ha-na who is 9 and the boy Kang Hyun-min who is 8.

He doesn't hate them but he avoids them, since his father only cares about them sinceHe doesn't hate them but he avoids them, since his father only cares about them since they were born.