A young man named Park Shi-On ( Joo Won) has savant syndrome and a developmental disability. His mental age is that of a 10-year-old, but he becomes a paediatric surgeon. Meanwhile, Kim Do-Han ( Joo Sang-Wook ), who is the best paediatric surgeon, finds himself frequently in confrontation with Park Shi-On. Pmnvv7.

sinopsis yong pal episode 18