>>99968545You know the boy band and girl group treatment.
They promote collab to increase Hololive general fans and reduce the number of fan that fixated only on each individual talent. Talents will also realized that they only had this meager number of views and the higher number they've got during their solo stream mostly came from Hololive general viewer pool. Cover want to prevent the Fauna and Gura situation which graduated and pulled their fans away from Hololive from happening again.
