Null Field Collective — Jujutsu Tech Investigation Visual Novel

A playable mystery investigation visual novel set in a jujutsu academy. Scan the campus, separate true stillness from false-hot readings, and find the other four null fields before the distributed secret collapses.

Final Product: Null Field Collective

Cover

Game cover: Daliah stands at the center of the null-field scan sigil while the other four null fields emerge from the mist — generated by GPT Image 2 in 16:9

Gameplay

Actual gameplay: the prologue — "That someone is you — Daliah. Held alone for three years. The one they hid the deepest."

Gameplay

Actual gameplay: the title screen — "Jujutsu Kaisen AU / A Distributed Top Secret / Five Pairs, One Campus"

Gameplay

Actual gameplay: Kento Nanami delivers the summons in the Restriction Notice Room — "From today, you will not be kept alone anymore."

Null Field Collective is a playable mystery investigation visual novel set in a jujutsu sorcery academy. A "null field" is a person who registers as absolute zero on cursed-energy scans — invisible to every sensor the school owns. For three years, Daliah believed she was the only one. She was wrong. There are five, and each is held by a keeper who will not let go: Nanami, Higuruma, Sukuna, Gojo and Choso.

Tonight the higher-ups let Daliah out for the first time — to scan the campus, separate true stillness from false-hot readings, and find the other four before the distributed secret collapses. Every scene is written live by an AI as you play, and the pair counter Pairs 0/4 tracks how close you are to the truth.

Play it now: Null Field Collective →

Game Features

Live LLM Narrative — every scene, every scan result and every suspicion is written in real time by an LLM as you play. No two investigations read the same (deepseek-chat real-time narrative).
Null-Field Scan Gameplay — walk the campus zones and scan for presences. True null fields read as impossible stillness; false-hot readings are traps set by strong cursed energy.
Five Pairs, One Campus — four investigation areas unlock progressively: Courtyard → Cafeteria → Library → Classroom Wing, plus the Rooftop finale at dusk.
Distributed Top Secret — each null field is held by a keeper: Nanami, Higuruma, Sukuna, Gojo and Choso. Their trust and your caution decide how the secret unfolds.
Original Anime Art — dark jujutsu-style character sprites and hand-built scene backgrounds: stone courtyards, maple benches, cafeteria corner tables and archive stacks.
Browser Playable — runs directly in your browser, no download needed. Live AI dialogue on every page turn.

Character Sprites

Sprite

Daliah — the player viewpoint character, the first null field (transparent PNG, background removed via BiRefNet)

Sprite

Kento Nanami — Daliah's restrained keeper, precise enough to guide without revealing more

Sprite

Alma — Daliah's twin and another null field, found at the maple benches

Sprite

Hiromi Higuruma — the lawyerly keeper of Alma, whose certainty breaks

Sprite

Penelope — the cold, contained null field hidden at the cafeteria corner table

Sprite

Sukuna — Penelope's dangerous keeper, thrilled by the discovery of five pairs

Sprite

Skye — the bright, unguarded null field in the library deep stacks

Sprite

Satoru Gojo — the Six Eyes keeper of Skye, who saw the secret early

Sprite

Wren — the quiet null field once mistaken for background noise in the classroom

Sprite

Choso — the earnest keeper of Wren, protective by instinct

Production Process Breakdown

Stage 1: World Buildingclaude-opus-5
AI receives the seed prompt "create an empty space for me, without any elements" and grows the world of Null-field — 42 atom cards: characters (15), locations (27). Each card contains original descriptions, cover art and interconnections.

Stage 2: Game Design & Artgpt-image-2
AI designs the game from the atom cards: the null-field scan rules, the pair-tracking counter and the four investigation areas, then produces every art asset. Character sprites were cut into transparent PNGs via BiRefNet background removal.

Stage 3: Build & Publishdeepseek-chat
Game built and published with one click, instantly shareable online. A live LLM (deepseek-chat) improvises each scene in the keepers' own voices as you investigate.

Scene Backgrounds

Jujutsu Tech courtyard — stone paving, maple trees and the old wooden hall

Cafeteria — long tables and shoji light, loud enough to hide a cold null field

Library — floor-to-ceiling stacks where Skye's bright field stands out

Classroom wing — sunbeams through shoji, where Wren's stillness returns

Rooftop at dusk — the ending scene where the distributed secret settles

Night training ground — stone lanterns and silhouetted trees

Asset Prompts

Character Cover Prompt (Daliah)gpt-image-2
"Local game asset cover for Daliah from Null Field Collective: daliah-neutral.png. No generation."

Character Cover Prompt (Kento Nanami)gpt-image-2
"Top-aligned atom card cover for Kento Nanami, derived only from local game asset nanami-neutral.png; no generation."

Background Prompt (Courtyard)gpt-image-2
"Local game asset cover for Jujutsu Tech - Courtyard from Null Field Collective: courtyard.webp. No generation."

Background Prompt (Cafeteria Corner Table)gpt-image-2
"Local game asset cover for Cafeteria - Corner Table from Null Field Collective: z_cafeteria_corner.webp. No generation."

Background Prompt (Library Deep Stacks)gpt-image-2
"Local game asset cover for Library - Deep Stacks from Null Field Collective: z_library_stacks.webp. No generation."

World Cover Promptgpt-image-2
"Selected horizontal world cover for Null-field. Creator-facing key visual that matches this world's established assets and atom style."

Why Choose Neta Studio

Professional — Cloud harness system supports the full workflow from world building to game publishing, all running in the cloud with no local setup. Stable access to the latest models: Claude Opus 5 GPT Image 2 DeepSeek V3 Kimi 3 Gemini 3.1

One-click generation — Officially tuned skills drive every step: world building, character design, art generation, game packaging. World fork resource sharing lets you inherit any public world — all its characters, locations and events — then rewrite what you want.

Community-first — Users build unlimited worlds, all public worlds can be forked, remixed, reimagined. The Discord learning community walks with you from your first world to your first game.

Studio Interior

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Studio

Start Creating

This game was generated by Neta Studio AI from a single sentence. The world took minutes. The game took minutes. You can do it too — adapt this world or start fresh from any IP. No coding required, free to start.

Play Null Field Collective Explore the World

World: Null-fieldType: Mystery Investigation Visual Novel42 atom cards · 10 sprites · 6 backgrounds · 1 coverShare: Play →