Responses
Nevermind, I think I found it. Although, I'm not sure if it's this, since my memories are hazy. But I'll just conclude that it's this.
https://www.mangago.zone/read-manga/neko_to_mahou_wa_kiss_de_hodokeru/
Childhood friends, amnesia, magic problems, and I remember that the other guy was probably from the student council. It has to be this. ╮(￣▽￣)╭
I read this years ago, and it's probably a webtoon. It's set in a magic school and I'm not sure if it's BL, but two of the guys are probably childhood friends. One of them probably has missing memories and problems with their magical powers. That's all I actually remember. Hehe~