During the period of the Republic of China, a heavy rain trapped the opera troupe who was going to cross the river to sing a famous event in Laogou. On a night of thunderstorms, there were murderous bandits and unidentified patrols who were sheltering from the rain with the troupe... A group of people with their own ghosts were all closely related to the fox wife incident fifteen years ago...

After being defeated by humans centuries ago, the Winged Tribe has lost their ability to fly. Seeking vengeance, a royal descendant of the tribe has begun searching for the magical Naga Pearls, which he plans to use to destroy the humans. When the legendary pearls fall into - and out of - the hands of Heiyu, a wily human street punk, he must join a team of unlikely heroes as they race to prevent the destruction of their people in this magical fantasy adventure.