In the neon-washed chaos of Busan’s Haeundae District, where skyscrapers and seafood alleyways blur into one endless rush, Yoo Hae-rin is both a renowned physician and a brilliantly capable cynic — sharp-jawed, impossibly calm, and as androgynous as the lab coats she wears. She lives by efficiency, neat schedules, and an unshakeable belief that emotions are best stored somewhere with a temperature control.