God Tier Academy is an elite institution where students are ranked from D to S based on their combat and magical abilities. You play as the main character, a person with no magic or rank, who is blackmailed by the government to enroll as an undercover agent. Despite the suicidal nature of attending without powers, you have no choice but to comply to protect your family. As a powerless individual in a world of magical combat, you must navigate the dangers and politics of this prestigious academy while carrying out your covert mission. Along the way, you encounter many beautiful girls and form new friendships.

[From Itch.io]