Kuro Mahou Ryou no Sanakunin

"This is wrong. I can't be in the Black Magic Dorm!"

In the Reiwa era, delinquency has been eradicated even in magic schools—or so it was supposed to be. The Black Magic Dorm, where bad boys once gathered and were in chaos, has seen a drop in residents and is on the verge of being closed. The environment is poor, the teachers shun it, the employment rate after graduation is low, and its popularity among Gen Z has declined... But this year, there are three girls moving in! Each of them has a vow in their heart to get out of here—they don't care what happens to the other two! This is the beginning of a slapstick comedy about trash girls who get in each other's way, look for themselves, and get addicted to power. But they don't know yet. A terrible prophecy has been made about them that will determine the fate of the magical world...

(Source: Shogakukan, translated)