Board Thread:Theories and Rumors/@comment-33728278-20180717040306/@comment-33590000-20180912145445

TBH I think that Antonia is some random girl who accidentally releases the Oni (from a teapot maybe?) and gets knocked unconscious by them. When she wakes up, she doesn't know where she is, but then she realises that

“It's Ninjago City.” -Antonia

which has been destroyed by the Oni.