The verified update
No official platform-specific file size is published in Natsume’s three announcements or current physical product details.
This briefing isolates one part of the public record so that a player can act on the confirmed detail without mistaking a broad trailer, preorder listing, or product page for a complete specification.
What the source establishes
- Five platform families are confirmed.
- The press releases do not list gigabytes or storage requirements.
- Physical media availability does not reveal download or patch size.
Why it matters now
Storage guides should wait for first-party platform metadata instead of copying a guessed size across systems.
For editorial tracking, this topic should be reviewed again when Natsume publishes another game-specific release, when a verified platform store exposes new metadata, or when launch-day testing can answer the remaining operational question.
What this update does not establish
Switch, Switch 2, PS5, Xbox, and Steam may show different sizes, and launch updates can change them.
No unannounced feature, value, route, schedule, performance target, item table, or story outcome has been inferred. The distinction is important because the game is still unreleased.
Primary evidence
Natsume official news index · source date 2026-07-29; independently reviewed 2026-07-29.