Hatsuboshi business card case (black)
Hatsuboshi business card case (black) is a SSR-rank P-item for the Anomaly plan in Gakuen Idolmaster. When it triggers: [High difficulty] each time you gain 3 skill cards: only from the next exam onward, at the start: Full Power of a skill card with this effect parameter value increased +2 parameter gain increased 3 % the simulated rival's score 8% increase (5× per produce run). How to get it: 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 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.
Ownership source
P-items don't all come from the same place — how you obtain one determines who it's tied to:
Hatsuboshi business card case (black) is a Challenge P-item — tied to one specific story chapter, and activates immediately on equip.
P-item mechanics
| Plan | Anomaly |
| Effects | [High difficulty] each time you gain 3 skill cards: only from the next exam onward, at the start: Full Power of a skill card with this effect parameter value increased +2 parameter gain increased 3 % the simulated rival's score 8% increase (5× per produce run) |
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.
Hatsuboshi business card case (black) is a Challenge P-item — tied to one specific story chapter, and activates immediately on equip.
