Tian-Yu Evans (21: born January 1, 1990) has had her whole life figured out since she was seven years old. Attending Stanford Medical School, she's visiting South Korea over the summer with an internship at the Main Branch of Seoul National University Hospital. In her spare time, she is either out on the streets playing guitar and singing, or working at Starbucks cafe.

Her outward personality is generally quiet and introverted, respectful and independent. The side she keeps to herself is sarcastic and edgy, usually only shown when she's around close friends. She prefers to hide her feelings rather than express them. However, she is very straightforward with her thoughts and won't hesitate to say what she believes in. She is often compassionate to a fault, but it is this strength that pushes her foward as an aspiring doctor.

She has a passion for the piano, guitar, singing, and music in general. She also enjoys art and photography, as well as journalism and traveling. Her weaknesses are food and sleep, but she tries to stay away from the latter. There are always dark circles under her eyes from lack of sleep. 

Tian-Yu is 3/4 Chinese and 1/4 European. She's a pretty, slender girl at 165 centimeters tall with dark, mid-back length hair. She has clear skin, an oval face, and never wears make-up. Her defining feature are her almond shaped eyes that are dark blue in color (they bring a lot of unwanted attention).  

She meets Jaejoong one day when he is submitted into Seoul National University Hospital due to an accident that tore his left knee ligament. Things get out-of-hand from there.