Once Upon A December

15 years after the fall of the royal House of Jade, Ninjago City is a shadow of what it once was - a kingdom built on secrets, smoke, and forgotten names.
Rumi has no past. No family. No memories - only a broken music box and a haunting dream of a boy with blue eyes who promised she'd never be alone.
When a charming street thief named Lloyd and his fiery partners Kai and Nya promise her a new life by pretending to be the lost Princess Harumi, Rumi takes the risk. After all, what's one more lie when you don't even know who you are?
But as they chase ghosts across a fractured empire - from the glittering mansions of Countess Skylor to the icy exile of Prince Zane, the last surviving Jade, Rumi begins to realize the impossible:
The stories they're inventing might be her own.
Meanwhile, Commissioner Morro, a loyal soldier of the new regime, hunts her down, torn between duty and the memories of a sister he once lost to the fire of the revolution.
In a city where truth can kill and love is the most dangerous rebellion of all, one orphan's search for identity might just change the fate of Ninjago forever.