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Vtuber concept.
The lore presented is that she's some witch or sorcerous or semi-immortal, and live in her cozy home with her elderly husband. She's not even trying to do "GFE", she's just a hostess telling you stories, feeding you and offering tutorials etc. Her old man is like the mascot character and it's explained he is a mortal man she married when he was younger.
Watchable?