Toumei Ningen - Arawaru Arawaru

Toumei Ningen is an adventure game by RED-ZONE. You play as a frail science teacher who accidentally creates an invisibility substance while working on a health tonic. To complete the original medicine, he must collect women's bodily fluids, and as a side mission, he seeks revenge on those who bullied him in the past. Featuring invisibility, adult content, a single ending, a teacher heroine with glasses, map exploration, and group scenes involving one male and multiple females.