Okarun, the service nerd, and the sparkling Momo are now an unlikely duo! Their goal is clear: to defy Meme-Turbo, the spirit behind the curse that struck Ken. On paper, their plan was simple, it was enough to challenge her in the race, to keep her away from her den to weaken her and then eliminate her! But at the time of reaching their goal, an enemy of size is emerging: the jibakurei, a gigantic crab that is rushing to their chases!