The story kicks off when Shin-chan finds a mysterious, shiny ball by a river and brings it home. Chaos ensues when his baby sister, , accidentally swallows it. It turns out the sphere is one of two powerful "Dark Tama Tamas" needed to resurrect an ancient evil spirit, Devil Jack . The Nohara family gets caught between two warring clans:

The game follows the adventures of Shin-chan, a young boy with a mischievous personality, and his friends Tama and Tamami. The story takes place on a thrilling night where Shin-chan and his friends embark on a mysterious journey. The gameplay involves interactive storytelling, puzzles, and exploration.