There's a lot of things to like about this one, the family members are adorable, MC's powers are super interesting and cute, the ending was super satisfying. Even with all that, I can't get over how much I don't like the MC herself. She's presented as having these genius level magic powers that make her incredibly strong, but it rarely comes up until the end. Most of the time she's throwing herself head first into trouble and then crying as a damsel in distress until her family can come save her. For most of the story instead of her helping it would've saved everyone time and trouble if she had just stayed home. Yeah, she's a kid with trauma. That doesn't make it any better to read her shout that she's gonna be helpful for once and end up just sitting somewhere crying.
The Monster Duchess and Contract Princess