Akuhyou Reijou Nanoni, Bibou no Koushi ga Semattekuru

Palentia (AKA Tia) is a reclusive, geeky young lady who is absorbed in researching magical tools. To avoid being seen in high society, she spreads a bad reputation for herself as a spoiled, arrogant young lady, but by chance, the handsome prince Raul takes a liking to her...! Confused by his doting affection and marriage proposal, Tia decides to actually play the villain she is rumored to be, and strives to make him hate her but...?!

[Original Web Novel](https://ncode.syosetu.com/n4155in/)
[Original Web Serialization](https://comic-walker.com/detail/KC_006926_S/)