To an Unknown World
To an Unknown World is a SSR-rank P-item for the Sense plan in Gakuen Idolmaster. When it triggers: When a card is used → If card has the Concentration effect → Effect counter +1; If Effect counter divided by 3 leaves remainder 2 → Concentration +number of cards matching (removed) × 0.5. How to get it: Exclusive P-item of P-idol Hanami Ume — ENDLESS DANCE — only this P-idol brings this P-item into a Produce run.
Exclusive P-item of P-idol Hanami Ume — ENDLESS DANCE — only this P-idol brings this P-item into a Produce run.
Ownership source
P-items don't all come from the same place — how you obtain one determines who it's tied to:
To an Unknown World falls under Idol-exclusive.
P-item mechanics
| Plan | Sense |
| Appears in | Contest / Stage |
| Release date | 2026-02-27 |
| Effects | When a card is used → If card has the Concentration effect → Effect counter +1; If Effect counter divided by 3 leaves remainder 2 → Concentration +number of cards matching (removed) × 0.5 |
P-item pool type
Gakuen Idolmaster splits P-items across several separate pools — not every P-item lives in one shared list:
P-items listed in the game's official P-item dex, obtainable during most standard Produce runs.
A SEPARATE pool that only appears in the H.I.F chapter — the way you play and unlock it differs from regular P-items even though it's still filed under the official dex.
A SEPARATE pool tied to a specific story chapter (e.g. N.I.A). It activates IMMEDIATELY on equip rather than waiting for a condition, and comes with a trade-off: triggering the effect also grants points to the simulated rival in the audition — many players deliberately avoid triggering it just to keep the baseline audition bonus.
A SEPARATE pool used only in Contest mode, distinct from both the regular pool and the chapter-specific pools.
To an Unknown World belongs to the Regular pool (P図鑑) — part of the official P-item dex, not a Custom/Challenge/Contest P-item.
