Saibiyaku ~Miseijuku na Shoujo o Hatsujou Saseru Kusuri~ by Dieselmine - Adult Sex Game

Unattractive and trapped in his career, a company man turns to drugs.
Not on himself, but on high school girls.
The drug is "hypnodisia", inducing estrum in girls who sate their lust on his...
They might resist, but the instant effect of the drug makes orgasmic slaves of the pretty girls.
Who knew this sort of life was possible......