Kemo Kare! ~Oretachi no BL Byoutou~

I, a handsome surgeon (name can be changed) contracted a new kind of disease... "Beast Disease".

Symptom 1: Animal ears and tail grow and turn him into a beast
Symptom 2: When he's in heat, he's not satisfied until you ×× him!!

He was assigned to Tsukishiro Medical College, where he's trying to research this new disease...but he can't stop going into heat in front of the handsome doctors!

[Info from Frontier Works website]