https://www.mangago.me/read-manga/konya_mo_nemurenai/
Not sure but is it this?
https://www.mangago.me/tag/incubus%20/
Here r some incubus yaoi manga u might find it here
n its not that one but thanks (≧∀≦)
I tried looking for it there but I couldn't find it
https://www.mangago.me/tag/exorcist/
Try this then
╥﹏╥ I couldn't find it but really thank you for helping me
Sorry that I couldn’t be of any help
Hope u find it real soon
Thank you(づ￣ ³￣)づ
I read this before and I can't find it anymore its a yaoi manga where the seme is an exorcist and the uke is an incubus and the uke could change into his younger and older form but the seme likes the older form of the uke