Chaos na Karada W ~Futanari Ninshin Jikken

"I'm superior to that woman... here is my proof!"
Alice screamed and clenched her fists tightly.
She made this challenge to a rival scientist, Shizuka.
With the gauntlet thrown, Alice immediately began a new experiment...
choosing her assistant as the test subject, Yoko Sasazuka.

[From DLsite English]