The Legend of the Blue Sea

Real Identity of Kang Ji Hyeon (1x16)

Air date: Jan 11, 2017

Jun Jae and Yu Ran, whom they met again, talk each other regarding their past time. Nam Doo who was curious about Kang Ji Hyun(Seo Hee), asks Yu Ran about her. In the meantime, Chi Hyeon starts asking Seo Hee about his biological father.