Ars Goetia ～The Boy Who Was Called Incompetent Uses 72 Demons to Become Unstoppable - Ch. 6

[MangaDex]

 

[welcome2atlantis]

Yes, I don't think you could master Avada Kedavra in one month.

 

[Ernergeycey]

i bet his teacher was smelling that ars goetia from afar

bro probably knows he using something devious