During summer vacation, Aoi came to visit his grandparents' house.

There, his grandfather told him a story from his own experience about a mysterious mansion deep in the mountains. Apparently, on summer nights, a festival hosted by spirits is held there. Occasionally, humans wander in, and rather than being eaten or attacked, they are welcomed. His grandfather was one of those humans, and he supposedly spent the night visiting stalls and playing with the master of the house and the spirits.

Though he thought it sounded like a tall tale, Aoi, who loves festivals, ended up getting lost while exploring the mountain trails.

As the mist rolled in, he tried to hurry home, but found himself on a path he didn't recognize.

And then, beyond the mist—

An old wooden mansion appeared, with lanterns, lamps, and stalls decorating a wide-open garden.

"Lord Guest, the food is ready!"

"I've finished lighting the lanterns over here."

"I'm going to go get the stalls ready!"

Countless lanterns are lit in the garden, and wind chimes on the veranda play a cool, refreshing melody. Paper lanterns float on the pond.

At a stall run by a child who looks like a Zashiki-warashi, dumplings are lined up. They aren't just round; there are star shapes, flower shapes, and even cat shapes.

At the stall opposite, there's a figure resembling a Kappa with a plate on its head. It seems to be a lottery using nuts and beautiful stones. The prize shelves are lined with nuts, mountain flowers, charms, and bell toys.

At the stall in the back, a fox stirs a pot while its tail sways softly. There are signs for sweet sake, steamed buns, tea, and mountain fruits.