Haru is a small dog VTuber who creates content in German on Twitch. He desperately tries to be seiso, but fails spectacularly. He regularly has collabs with other content creators.
Far away in Nebraska, a rather wealthy science obsessed man tried to create catgirls, but due to a freakish accident he created Haru instead. To this day no one knows how to get from Catgirl to Dogboy, but that's a whole different story.
After learning the basics and finding out about the 15k+ sausage flavours that Germany has, he hijacked a plane and then put up a "Free Puppy" box. (That actually worked!)