Title of story which i forgot cuz im dumb!

Please help me;(
Couple of months ago I started reading a story, then i stopped idk why lol, and now i remind myself of it and I totally forgot the title.
I remember that it is in limelight, action take place in some school with uniforms and one of the characters’ name is Akatski Stronghold or something like that. Do you know which story is it?