Taesan is the son of the most renowned doctor in the city and his father wants him to follow in his footsteps but he hates medicine and really wants to be a musician, but his father says that this is useless and is ashamed of having him as a son when he has another son who is in medical school. Taesan carries a lot of weight alone inside himself and does not open up to anyone, he only shows his frown to pretend that he does not care about anything, so he acts grumpy and rude to not show feelings