Kagaku Na Yatsura

A 2010 manga about a common boy and his two Mad Scientist female friends. Received a OVA adaptation in 2012.

Harui Komaba is just a normal guy, but his two female childhood friends are really something else: Airi is a cyborg and Ayana is half-dog since a failed experiment involving canine DNA when she was a child. Together they live a common, but not so common life, thanks to Ayana's crazy biological friends and Airi's crazy machines.


 * Accidental Pervert: Happens to every character several times, including the girls and specially Ayana's animals. The results may even involve...penetration.
 * Cyborg: Airi can detach her hands to start with. These parts are indistinguishable from the rest of her body, so it's hard to tell where girl ends and cyborg begins.
 * Fanservice: Mary mother of Christ, this manga is overflowing with fanservice(not a joke about Ayana's breasts). The only thing the manga don't shows is sexual organs, and that's because japanese law prevents this.
 * Girlish Pigtails: Airi has these and is both smaller in height and bust compared to Ayana, making her look like a child.
 * Half-Human Hybrid: Ayana had her DNA mixed with one of a dog when she was young. That manifest in the forms of dog ears, dog tail and having the capacity of producing milk from her breasts if stimulated.
 * Intimate Healing: Ayane tries to keep Harui's body warm by using her body, while showing her breasts.
 * Mundane Utility: Airi has a function on her backpack filled with incredibly coordinated mechanical limbs to make coffee.
 * Naughty Tentacles: That manifest in the form of either Airi's robotic tentacles or the tentacles of Ayana's animals.
 * Nipple And Dimed: Averted for both manga and OVA. Hell, the first page of the manga shows Ayana's bare nipples.
 * Zettai Ryouiki: Ayana usually have a grade B on her.