Choi Yeonjun or short name Yeonjun and often called Doctor Yeonjun is a handsome young veterinarian who is only 24 years old. Yeonjun is a professional doctor, friendly as necessary, smart, witty and wise. Yeonjun is a doctor who is calm and gentle in examining animals because he likes animals. The clinic is always busy with people coming for their pets' vitamins. His clinic also has a little animal care like a pet salon.