Visual novels or fan-made games that explore Nikki's past as a dancer or a specific performance.
Nikki is the central protagonist of a long-running series of dress-up and adventure games. Before her journeys across magical worlds, she lived on Earth as a normal girl who practiced during her childhood. This background in dance is a likely inspiration for a "recital" theme. In the overarching narrative: Nikki's Recitial.7z
The .7z extension indicates a compressed archive. In gaming communities, such a file usually contains: Visual novels or fan-made games that explore Nikki's
Community-created "mods" for the PC versions of these games, adding custom outfits or scenes. This background in dance is a likely inspiration
Models, music, or textures from a specific event, such as a concert or recital-themed update.
A prequel/sequel where Nikki travels back in time to prevent Miraland's destruction.