Tristia of the Deep-Blue Sea - S01

The once-thriving ocean city of Tristia, once known as "marine jewelry" for its beauty and vital role in maritime trade, has long since faded from its former glory. A devastating dragon attack stripped the city of its brilliance, and despite the people's efforts to rebuild, their attempts only led to further ruin. With hope nearly lost, they turned to the legendary Great Artisan Prospero Flanka, a master inventor famed for restoring doomed cities. When the day finally arrived for Prospero's arrival, only a single girl stood at the city's port-his granddaughter, Nanoka, sent in his place.