Radio

Radio is a chimera created by Promestein appears in Chapter 3 and Paradox.

Monster Girl Quest trilogy
In Chapter 3, if Luka surrenders to Promestein in the Monster Lord's Castle, he is taken to the Drain Lab, where Radio rapes him using various machinery all over his body. This rape scene is added to Promestein's first Monsterpedia entry as "Rape Scene 2" and is required to complete the Monsterpedia.

According to Torotoro's blog, when the Drain Lab destroyed, Radio were burried alive beneath the ruin of the Drain Lab, waiting for someone to dig her out.

Monster Girl Quest: Paradox trilogy
In Chapter 1, after go through the third tartarus in the Sabasa continent, at the parallel world on the other side of the tartarus, she can be found in the Administrator Tower. There, she will show player the memory of the last survivors of that world. Then, she will guide player to her current master, La Croix. Before the player escape the tower, La Croix convert Radio`s master authority from herself to Luka. She is the last companion who joins Luka`s party in the chapter 1. She often call herself junk in the pocket castle.