>>5144239hololive is a company producing maybe half the vtubers you heard about. they make the 3D models, hire voice actors and manage their streaming schedule. Most vtubers are under such companies, the ones who aren't are either teenage girls who probably won't make it and manga artists who would have streamed anyway but thought it was funnier to design an avatar.
Basically, they're playing Idolmaster in real life and probably dicking everyone's waifus as well
