Revealing the identity and inspiration behind The Ringing World, Jojo reconciles with the past. Duk Goo keeps his end of the bargain.

Cast: Kim So-Hyun, Song Kang, Ga-ram Jung, Da-bin Bae, Kim Shi Eun, Jae-eung Lee, Go Min-Si, Seong-yeon Park, Song Seon-mi, Na-Moo Yoon