help me find this messed up BL manga please

it was about this kid who was somehow brain washed? he had no memories i think his brain was dead empty, his body was also modified somehow like he had horns, and he is used as a prostitute. this man was in charge of training him to talk and act more like a prostitute but he thought the whole situation was messed up and really wasnt that into it. the kid ends up getting very attached to the man.

it was a really fucked up one, i remember reading it because it had cute art and some wholesome moments, though still quite fucked up