/vt/ - Virtual Youtubers

Together as one channel, Seki silently makes the content happen, typically playing games with bizarre extra rules or challenges, while Yokoi speaks to herself aloud, and interacts with chat, trying to understand, and gradually gets emotionally invested in the challenges, game lore, etc. With few exceptions, he can't hear her, he makes the title/description, she can't read that, we see both of their character models, and they're both there for every stream.
Or replace Seki for a girl that fills the same role, since that would avoid the whole thing being cuckposter bait.