Chivalry of a failed knight - Stella Vermillion

Nicknamed Black Sonia, he has the ability to control shadows with his device, the Darkness Hermit.

I feel like we have all at some point watched a show like Rakudai Kishi no Cavalry with the same characters and personalities.

This resulted in new rules that require students to have a certain ranking in order to take classes, keeping Ikki from getting units and passing his first year.

However, Stella doesn't seem to buy that, as a blood-related brother and sister do not normally kiss each other so passionately.