Niijima's Palace

Persona 5 Royal guide · Strategy for the Casino dungeon

Infiltrate Sae Niijima's Palace, modeled as a glamorous, high-stakes casino, to secure her Treasure route before your impending capture. Progress requires earning casino coins through rigged gambling games, navigating darkness mazes, and fighting arena matches to ascend to the high limit floors. Once the route to the Treasure is secured, the story locks into the events leading directly to the prologue's interrogation room.

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Akechi's Justice Confidant Rank 8 | Reach Rank 8 with Goro Akechi before securing the infiltration route in this Palace, as his manual confidant availability ends here.True Ending dialogue choice | During the interrogation scene after this Palace's deadline, refuse to cooperate with Sae Niijima and do not sell out your teammates, or you will trigger the bad ending.Third Semester requirement | Reach Councillor Confidant (Takuto Maruki) Rank 9 before November 18 to unlock the Royal-exclusive third semester.

Deadlines

November 19 | Secure the infiltration route to the Treasure and send the Calling Card to face the boss before this date.

Social links

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Justice (Goro Akechi): Available in Kichijoji on designated evenings; must be raised to Rank 8 prior to finishing the infiltration route.

Worth doing

Level up party members' Baton Pass and technical ranks by playing darts and billiards in Kichijoji during non-Palace free time.
Visit the Jazz Jin club in Kichijoji on weekend evenings with a party member to grant them permanent stat boosts or exclusive skills.

Items

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Darkness Maze: Blue Envy SeedFound in the High Limit Area by navigating behind the giant scale platform and defeating a powerful guardianRed Envy Seed: Found behind a grapple point and locked door in the Staff Only passagewaysGreen Envy Seed: Located in the high-ceiling rafter area above the Slot Room accessed via grapple

Enemies

Skadi (Shadow of Despair)

Weak to Fire

Heavy Ice-affinity caster; bring Fire attackers to knock her down quickly.

Queen Mab (Cruel Leopard)

Weak to Wind

Repels Electric; susceptible to Wind skills and sleep ailments.

King Frost (Final Frost)

Weak to Fire

Nullifies or absorbs Ice and Bless; exploit Fire and guard against Megaton Raid.

Thor (Thunder Emperor)

Has no elemental weaknesses; rely on physical critical hits or status-inflicted Technicals to down him.

Tips

Bring Joker Personas that cover multiple elements, but avoid bringing teammates weak to Nuclear or Bless/Curse when ascending the upper floors.
You must borrow coins from the Member's floor register before attempting to solve the giant dice and slot puzzles.
When fighting the boss, Shadow Sae, immediately stop attacking and strictly guard whenever the roulette wheel spins to avoid severe penalties.

Not listed for this area: shops and people.

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Shido's Palace

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