Batcat loves being all alone in their home on Spooky Island, spending time playing videogames and watching TV. But, when they find themself being haunted by an annoying, ice cream-stealing ghost, they visit the local Island Witch for a spell to remove their ghostly guest permanently.

Kai Song dreams of being a warrior. She wants to follow in the footsteps of her beloved father, the commander of the Royal Legion. But while her father believes in Kai and trains her in martial arts, their society isn't ready for a girl warrior. Still, Kai is determined. But she is plagued by rumors that she is the granddaughter of Gumiho, the infamous nine-tailed fox demon who was killed by her father years before. Everything comes crashing down...