The crane bone boat that sank three hundred years ago returned to Hong Kong in the waterless night tide. Shang Zhou, a young man who records the names of the dead, gets a piece of obscure bone from the ship that can eat up memories, and also meets a heartless girl who can tell the list of tomorrow's dead. In order to find his adoptive father who had been missing for three years, he and his companions pursued the old city that had been erased by history, only to discover that the six-wheeled sun that shines on all living beings has always been fueled by the memories of all living beings. If the price of saving a city is to let the unknown person never exist, he will leave a testimony for this era.
