Kangoku: Injoku no Jikkentou / Project Boobs / In Confinement

Adaptation of a visual novel by studio Black Package Try released in 2005. The hentai takes place in our time. Three special agent girls infiltrate a private laboratory where a new potent drug is supposedly being developed. According to all laws and clichés of hentai, the girls fall into traps and become guinea pigs in the hands of depraved scientists. They also test that very drug on them...

 Video restored, subtitles added