Ep. 11: Celestine learns of Klem's nature while Alicia betrays the group to Saddler.

11

The group tells Celestine about Klem and she is happy that the Demon Lord is not evil. While separated from Shera and Diablo, Alicia betrays Rem and Klem to Saddler and they are arrested. Alicia's plan is to traumatize Klem until she returns to her true self. Saddler takes them to a church where he intends to torture Rem until she confesses to worshiping a Demon Lord. Diablo and Shera search for them, while a massive army of Fallen marches toward Faltra City. Klem tries to protect Rem, but when Saddler attempts to strike her, Rem shields her with her body and is impaled several times. Klem snaps, returns to her original demon form, kills Saddler, and blows up the church. As she rampages, Diablo and Shera arrive. (Source: Wikipedia)