Quifrey from Witch hat atelier

Kira was Coco's sister. Compared to Coco, she was a bit colder, almost like Agott. Everyone thought Coco was responsible for their mother's frozen state due to the forbidden spell. But everyone was wrong. The group known as the "Crested Hat Men," who gave Coco the forbidden spell book, had actually given Kira a much more detailed book first, and Kira was the one who unintentionally performed the spell. Because Kira had a photographic memory, she never forgot anything she'd seen, so even though her own forbidden spell book was trapped inside the crystal in the house, she knew the entire book by heart. But she could never tell anyone this. That's why she always kept her distance from others.

Kira is almost a little too much misterious for a young gırl for Quifrey