amorigawa kaiko
An original character by Sanagi Torajirou.
She is one of the protagonists in "Jikken Shimai" (Experiment Sisters), featured in Comic Megastore Alpha December 2014, where she turns her sister, Amorigawa Mayu, into a futanari temporarily. She has a genius IQ of 200 and is considered a mad scientist.
She has short black hair, brown eyes, and large breasts.