A story that revolves around the clinical laboratory setting. Irene Bae Joo Hyun, the intelligent and elegant section leader of the Immunology-Chemistry department in Korea-Seoul General Hospital (
Characters Lee Minho | Lee Know, Han Jisung | Han, Bang Chan, Lee Felix, Seo Changbin, Kim Seungmin, Hwang Hyunjin, Yang Jeongin | I.N, Kim Hongjoong (ATEEZ)