Unlike her friends, Kim Jojo has more pressing things on her mind than dating. Upon returning from abroad, Hwang Sun-oh goes to see Lee Hye-yeong.

Sun-oh wants to know whether Hye-yeong has feelings for Jojo and tells him what he did. Jang Il-sik gets into a fight with Sun-oh and Hye-yeong.

Jojo confronts Sun-oh about the photos. As rumors spread at school, Jang-go gets mad at Jojo for lying. Il-sik confronts Jang-go about what she did.

Sun-oh asks Jojo about the school trip and realizes there’s not much he can do for her. Il-sik tells Jang-go something she doesn’t want to hear.

Jojo tells Sun-oh about her parents and makes a surprising suggestion. She later confronts Jang-go after overhearing something.

News of the tragedy hits the airwaves. Hye-yeong finds Jojo at the library and informs her that he plans to court her the old-fashioned way.

Jojo tries to put a shield around herself and tells Hye-yeong she doesn’t need his help, but he offers to take her somewhere special.

Jojo ponders what it means to like someone and realizes a shield may not be necessary. Sun-oh wants to know whether she still has feelings for him.

Curious about her true feelings for Hye-yeong, Jojo returns to her alma mater in search of information on Chon Duk-gu — and runs into her past.

Jojo asks Brian Chon about the shield at an event attended by the Badge Club members, including Sun-oh. Hye-yeong comes face-to-face with his father.

Jojo offers Hye-yeong a shoulder to cry on after a punishing day. Unable to cope with knowledge of the shield, Sun-oh turns to Jojo for the truth.

With video of his lecture hall visit gone viral, Sun-oh comes to blows with Hye-yeong. Jojo receives a special gift from an unknown sender.

Park Gul-mi reaches a digital milestone. Brian grills Jojo about the shield, spear and Duk-gu — and shatters reality for a bystanding listener.

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