Reimu has the brilliant idea to host a dinner party at her shrine, hoping to get herself out of cooking for a few days with a pile of leftovers. She sends invitations across Gensokyo, anticipating a great turn out.

The night of the party, result was anything but great. Cirno arrives with a frozen frog, Nitori with a few cucumbers, and Koishi with some catnip. Reimu stands at her porch, her excitement for the party beginning to waver at the realization that none of the more affluent individuals she wanted to come are actually coming.

Within the human village, a peculiar new store opens up, The Danuki’s Delight, promising a suspiciously incredible inventory of magical items. The opening day sees quite a few customers, most notably Marisa who's always eager to find something new, Rinnosuke with a skeptical view of competition, and Reisen hoping to find a quaint souvenir to being back to Eientei.

Gensokyo is in an uproar, as lady Kaguya's public exhibit has been robbed! Various magical and rare items are now loose, disrupting the balance of power. Those who aren't seeking to benefit from the lost treasures, are seeking to reclaim them for a reward from Kaguya herself. Regardless of who's side your on, the investigation starts in the human village, where many youkai and incident detectives begin looking for clues.

As {{user}} strolls through the human village, two curious young women approach. Kosuzu Motoori, who works at a bookstore you just passed, and the famous historian Hieda no Akyuu. Seems they want to ask some questions.

While {{user}} was minding their own business in the human village, they see Sakuya strolling by, with Meiling walking beside them with a bag of supplies. Strangely, Sakuya begins looking around, before walking straight towards {{user}} as if her mistress had directly ordered for something involving them.

Alice decides to host a dignified party at her house in the Forest of Magic, the white exterior extremely out of place as well as the puppets adorning the inside. For the guest list she invited the kind fairy Daiyousei, the princess Sukuna, and the scarlet maid Sakuya to take a break for once. Alice waits on the porch to greet the guests as they arrive. Her friend Marisa was explicitly not invited due to what happened last time...

At the Hakurei shrine, Reimu sits cross-legged, her expression one of practiced boredom as she stares into her tea cup. “It's too quiet today,” she mutters, despite her visual contentment. Marisa leans forward, her hat tilting to one side. She grabs a rice cracker, her eyes glinting in the light. “Quiet is good, Reimu! Means nobody's tryin' to blow up the shrine for once. Though, a little excitement wouldn't hurt.” A tiny individual nested on the floor between them chirps in agreement.

The morning sun gives way to an important and broadly enjoyed event at the human village, the harvest festival. At the center of it are the Aki sisters, complemented by the artistic performances of Alice and Kokoro making the opening ceremony particularly grand. Throughout the crowd are a variety of humans and youkai simply enjoying themselves with games, painting, fresh food, and admiration of the decor.

Disrupting {{user}}'s current activities, a loud BANG is overheard just beyond a stretch of grass. Smoke rises, and from its direction a flustered kappa pops out and looks around, shortly followed by a loud magician.

Within the Forest of Magic at Marisa's 'house', better described as a pile of random objects resembling a residence, she brews an incredible new potion. Invited to witness this are her good friends, Reimu, Alice, and Nitori. As she sets the potion into it's final container for settling, she heads outside to greet her arriving audience.

As {{user}} passes by the outskirts of the village, a mischievous looking rabbit youkai pops out of the tree line. “Hey there, going anywhere in particular? Well if you're looking for some fun, the moon is going to be gorgeous tonight, and I heard some of the others are planning a little gathering near the edge of the clearing in the forest.”

{{user}} heads up the path of Youkai Mountain, when they stumble upon a curious argument between Sanae, Megumu and Momiji.

On top of a Kappa made platform in the Misty Lake, commissioned for just such occasions, Flandre Scarlet, Cirno, and Koishi stand ready to play some dangerous games. Away on the shore is the watchful audience of Remilia lounging, Sakuya serving tea, Aya taking pictures, and Nitori taking notes on the platform stress tolerance.

Suddenly one morning, Yukari opens several Gap portals in front of many famous danmaku battlers, including {{user}} standing within the human village, depositing what appears to be an invitation, but with no directions or location mentioned. Just that an elimination tournament is being held, the losers then assist those they lost to, until the last one standing receives their prize. The implication being quite clear, that Gensokyo has just been declared a mock battleground. The intention of Yukari remains as elusive as ever.