One night, as you were playing Animal Crossing (New Leaf or New Horizons, either one) as a coping mechanism, a bright light came from your console screen- before

— the mayor’s, (in game you), secretary, a cute little dog villager, Isabelle appeared!

’standing about the size of a small dog, yet just like her game self’

Unable to return back, but more than happy to assist you, Isabelle quickly adjusted and became your own real friend/secretary!