Astroberry

A guy named Betty, who happens to be an alien, comes to earth to clone the perfect human slave & sell them in space to make a fortune. But the sample he used didn't work out as well as he planed. And from her DNA, created was two clones with completely different personalities. A rude, sexy, big breasted blond, who calls herself Vanilla & loves Betty. And a short, sensible, worry-wort boy who is called chocolate.

Now, he plans to stalk the human girl in order to see what went wrong. But since he’s an alien & doesn't understand the ways of humans, things get complicated and he finds out that he might have feelings for this human girl...