Is was a BL. The Uke always wore a mask because he had had his front teeth lock out or something, he made money from sucking weird pervs off, the seme found out his secret and I forgot the rest... pls help? :^)
It sounds a bit like this? :
http://www.mangago.zone/read-manga/cryptic_white/
Wow the art is so good I feel my eyes have been blessed