Responses
To Take An Enemy's Heart
Kim so watareba
http://www.mangago.zone/read-manga/kiss_me_princess/
This is exactly what you are looking for
Crimson Spell by Ayano Yamane
Feng Yu Jiu Tian by Feng Nong and Wang Yi - Chinese historical A/U setting
Does anyone know any Yaoi that is set in the past, like medieval times, or has magic in it, or BOTH