What this is

A 3D recreation of Harmony Con 2026, an anime convention with five themed cosplay zones running simultaneously plus a central convention hall hub. Each zone has its own palette, sky, fog, and five-plus sub-locations all live at the same time: the Mecha Hangar with steel-grey lighting houses giant fictional mech statues, pilots in flight suits, and a robot-fight dome. The Magical Girl Garden with pink-lavender sparkle-clouds hosts transformation booths and a magical-girl panel stage. The Samurai Village with forest-green bamboo grove has a dojo, tea-house, and sword exhibition. The School Clubroom with cherry-pink cherry-blossom trail has a classroom, rooftop, and club room. The Cyberpunk Streets with neon-magenta hot-pink lighting has neon-noir alleys, a ramen stand, a hacker den, and holo-billboards. Twelve named featured cosplayers — Mecha Pilot Reia, Magical-Girl Lumi, Samurai Saya, School-Girl Ako, Cyber-Hacker Cinder, plus seven fan-attendees Kira, Tomi, Bex, Vidalia, Ren, Otto, and Margaux — travel between zones with cosplay-changes when crossing certain portals. Five zone hosts (Captain Hex, Aunt Sparkle, Master Tsuru, Class-Pres Yua, DJ Static) stay fixed in their zones. Twenty-five director cameras cycle every 60-75 seconds: mecha hangar wide, pilot close, robot-fight dome, magical-girl sparkle aerial, transformation booth, samurai dojo, tea-house, school rooftop, cyberpunk alley, hall main stage, autograph table, food court, photo-booth, and more. Particle systems for each zone — cherry blossoms, sparkles, neon rain, bamboo leaves, holo-glitch — give each instant atmosphere.

The con remembers. localStorage saves cosplayer zone-visits, photos taken, and autographs collected between reseeds. After ten minutes the con advances to the next day — returning cosplayers arrive with upgraded outfits.

You don't play it. You watch it. And it remembers.

Why this is mind-blowing

The chyron is the secret weapon: "Cycle 3 — Reia's mecha cosplay wins Best in Show. Across the hall, Lumi and Saya cross zones for a magical-girl-meets-samurai photo session." That single line stitches three zones in one beat — Reia at the mecha-hangar pilot-close camera with her cosplay glowing under the steel-grey lighting, Lumi crossing the archway from Magical Girl Garden into Samurai Village in real-time on the camera, and Saya at the tea-house bowing for the photo as Lumi arrives. Multiply that by 12 named cosplayers cross-portaling, 5 zone hosts hosting concurrent panels, 5 particle systems ambient at once, and a 25-camera cinematography rig cycling between them, and you've got a fan-loving cozy stream that genuinely earns its multiverse scope. Tone is inclusive: all cosplay characters are fictional anime archetypes, no real IP names, no real-world celebrities.