u/LetsKillDaHoBeeetch

https://x.com/biriban/status/2088481832287559805

Saimin Datsujo 2 ~Subete ga Boku no Jiyuu ni Naru Sekai e Youkoso~ Mikado Azusa Hen

TLDR; It's about a boy who receives an artifact capable of controlling someone's mind, which, at first, he tries to use it to help his childhood friend to improve her performance in track. But as the time went by, he increasingly became captivated by her beauty and began using the artifact to brainwash her into falling in love with him.

It's a great mind control VN, the main heroine's development from a tomboyish lesbian into the MC's slutty girlfriend who acts like his submissive wife (yet is aggressive when it comes to sex) towards the end was amazing

by Satou Kuuki