Bokuhime Project (2020)

Bokuhime Project is a mystery adventure video game developed by Wizard Soft and published by Nippon Ichi Software. The player takes the role of a young man who infiltrates a school for refined young ladies by enrolling as a female student to investigate an incident involving his sister. As part of their investigation, the player aims to get a seat in an influential organization at the school, and thereby needs to improve their character statistics to raise their character's cuteness, overcoming the other candidates.