It's such a long ago time since i read it. The only thing i can remember is that It's a supernatural josei manga and it was a love triangle where one of the guys in the love triangle was a demon if not both of them, one of the guys was also her teacher kind of and it was also a historical josei manga and had a more of a realistic feeling from what i can remember.
Would love any type of suggestions

Hi! I think that the manga is Masca, check it out!

Hi! I haven't been here for a loooong time, but thanks!