Looking for a manga

Hi I’m looking for a Yaoi manga that I read a few years back.
It’s about humanoid sexdroids that basically have a love at first sight function. The manga is a compilation of short stories and if I’m not mistaken one of the stories is about the uke, who’s a droid, falling in love with the seme, who works in the production of these droids.
Another story is when this guy's relative - sister? - gives the seme the droid who’s supposed to be a female, but wrong delivery! Turns out as a male.
Another is about a black haired droid, I think, who’s owner didn’t care about the plain colour when everyone else likes the more striking designs.