Kento and Camilla have a high tension relationship. Their next meeting, Kento gives her a major scolding for her past misdeeds, and she promises to do better. She helps deal with her two evil brothers, getting stabbed through the stomach by one of them then healed. But Yuika gives a hard no (and crash out) about the idea of Camilla joining harem. Yuika makes a list of ridiculously hard demands, reparations must be paid, Reisenburg stabilized, etc (it'll need conquered first). Another ugly bastard villain tries to grape Camilla, and seeing the attempt Kento sits back and records it with a camera to use as evidence, stepping in at the last moment. Through various adventures Kento and Camilla become closer, and she becomes known as "The Demon King's Mistress" (thanks to propaganda she spreads). Eventually Klaus essentially talks the harem into accepting Kento's engagement with Camilla but that's far from the end to the drama. Yuika just gets meaner and meaner to Kento, to the point he actually hides out from her with Camilla. So the propaganda becomes reality. After hundreds of chapters Camilla finally arrives in Volzard and Kento marries his five brides. Yuika gets depressed seeing her delusions about Kento being demolished.