Desperately wanting a series like this to do proper world building and build up instead of just jumping directly to "humanity losing a huge war, need a diplomatic marriage for peace for some reason, marry her off, also here's the Demon King's subordinates". Like pleeeeeeeeease, anything to make me feel actually invested into these characters and this world cause so far there's absolutely nothing.
Also why are the Demon King's subordinate's all random tropes? We got the Warrior, the Nun, the Maid, and the Middle Eastern Princess. Why is the Maid trying to kill the main girl immediately, surely they know of the deal given it was agreed upon? And no, being jealous is not a good reason for that behavior.