Miku, the proprietor of her family's candy shop, is the only person aware of the hidden existence of Gacharico, a ghost. This spirit dwells in the alley behind the store, which locals call the Alley of ghosts. The capsules sold at the shop appear to contain ordinary toys, but in reality, they hold many other ghosts living within Gacharico, each with its own unique personality. These spirits use their various abilities to inspire wonder and stir emotions in the children who come to visit.