In which Jongup finds love, loses love, then breaks into the Underworld to bring his love back from the dead.      

The more Miyeol learned about her new stepbrother, the more she wanted him. (She can call it whatever she wants, because Himchan calls his love a crime.)    

In which you accidentally switched phones with Jongup, and Jongup thinks he is actually better off with your phone. (In Daehyun’s book, this is called Fate—you two also happen to have the same passcode)