For fastest release subscribe telegram channel - https://t.me/latestmangamtl In a savage world of instant death, rule the brutal monster girls and rule them! ! One day, Shiro, a kind-hearted university professor who is harmless to humans and animals, is transported to another world along with his laboratory along with his seminar students. It was a hopeless world where humans were treated as slaves and monster girls ruled! Shiro, who was threatened with the lives of the students as a slave without being given any abilities, decided to use the materials in the laboratory and his own pharmaceutical knowledge to control the monster girls by any means. do-