Girls' Generation's Sooyoung transformed into an innocent high school girl for the tvN drama 'Third Hospital'.

Sooyoung plays Lee Eui Jin, a violist who is in a one-sided love with the genius eastern medicine doctor Kim Seung Hyun, played by Oh Ji Ho. On the September 26th episode, 'Third Hospital' took a trip to the past where Lee Eui Jin and Kim Seung Hyun met for the first time.

The revealed still cuts show Sooyoung as a high school student, with low pigtails and an ivory school uniform to accentuate her innocence. Netizens who saw the pictures said, "I've discovered another charm of Sooyoung", "The white uniform fits you really well", "She looks like she can just go to school now", and "Did Oh Ji Ho save the country in his past life? I'm so jealous of his love line with Sooyoung".