侵略系Vtuber瑛りあん, Shinryaku-kei VTuber Erian

Yuya, a struggling freelance illustrator, lives with a roommate who is actually an alien plotting to invade Earth. After another failed attempt at world domination, the frustrated alien looks at the success of popular Vtubers with envy. Seeing an opportunity, Yuya suggests that the alien should become a Vtuber themselves. They kick off their streaming activities, but as an extraterrestrial trying to navigate human internet culture, things don't exactly go according to plan...?