September: Montario Opera House and Royal Capital Return

Metaphor: ReFantazio guide · Journey to Altabury Heights, disrupt the scheme within the opera house, and rush back toward the grand capital ahead of

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The protagonist and companions reach Altabury Heights to attend the Sanctist ceremony at the Montario Opera House and strike Louis down using the spear Drakodios. Infiltrating through the backstage corridors requires solving item trades among attendees to unlock the rear access up to the rafters. After a botched strike from above, the squad duels Louis on the roof and is subsequently forced to make an urgent retreat toward Grand Trad.

Region: Altabury Heights
Levels: Level 45–55
Getting there: From Upper Dia Franco Street and Lunlumo Approach in Altabury Heights, ascend the staircases north to Opera House Square and enter the western side entrance
Connects to: Lunlumo Approach, Upper Dia Franco Street, Upper Blue Sky Bridge
Related quests: Operation: Save the Prince from Death's Curse · Favor: Warmth in Winter
Services and people: Lax Shopkeeper · Devout Water Seller · Historian · Clumsy Man
Enemy types: Louis Guiabern

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Rear Entrance Key: Altabury Heights, Montario Opera House backstage: from the central corridor pick up the Gold Tooth on the floor, then walk south into the lobby to the Middle-Aged Noble in greenHow: hand him the Gold ToothMissable because: missable because advancing through the rear door to the roof permanently locks the areaHerald's Banner: Altabury Heights, Montario Opera House backstage: pick up the Leather String from the middle hallway, trade it to the Troubled Attendant in the southeast lobby corner for an Altabury Cake, trade that to the Ravenous Peeress in the north corridor for an Unopened Love Letter, then give it to the Troubled Nobleman standing in the main passage leading to the locked doorHow: hand him the Unopened Love LetterMissable because: missable because triggering the stage roof sequence permanently closes backstage accessMontario Opera House Backstage: deliver the Silver Necklace to the Dressing Room door in the western hallway to get a Theatre Script, then hand it to the red-dressed Actor outside the room; missable because entering the Canopy Passage and ascending past the rear door ends your chance to explore backstage.

Deadlines

September 10 (Idlesday) night: you must prepare all equipment beforehand and breach Montario Opera House to confront Louis.

Social links

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Basilio: Rank 1 begins on September 13 after the opera house crisis and royal carriage revelations.

Worth doing

Talk to the Clumsy Man in Opera House Square to build a cat-shaped snowman with a pointy headscarf to boost Imagination by 7.

Achievements here

Mission AccomplishedInfiltrate and clear the Montario Opera House in Altabury Heights. It automatically pops following the dramatic events of Louis's assassination attempt.

His MajestyAwaken and study the royal Prince Archetype for the protagonist. This unlocks automatically during the late September story revelation.

Achievement guide and roadmap →

Secrets

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Inspect the floor of the backstage corridors to find three green glowing items (Leather String, Gold Tooth, Silver Necklace), which can all be bartered among the panicked nobles and actors for bonus items before leaving.

Key fights

Louis Guiabern (Rooftop Duel)

Enemies: Louis Guiabern

Threats: Royal Coercion, heavy slash techniques, high-crit strikes, and massive party-wide pressure

Weaknesses and resistances: No innate weaknesses; neutral to all damage types

Tactics: Maintain defense buffs like Marakukaja, debuff Louis's attack with Tarunda, draw aggro with a high-durability Paladin or Assassin, and use Masked Dancer skills like Sable Dance to force a temporary Dark affinity for rapid weakness exploitation

Rewards: Experience, MAG, and major story progression

Shops and people

Devout Water Seller: sells Fruit Cordials in the streets leading toward Opera House Square
Lax Shopkeeper: sells customizable steamed buns (such as the invigorating bracken bun that restores 100 party MP) near the church

Tips

Equip Junah with your intended Archetype and gear in the afternoon before speaking to the guard at the entrance, as story events lock party management right before entering the backstage halls.

Not listed for this area: enemies.

← Previous

August to September: Virga Island and the Dragon Temple

September to October: Skybound Avatar and the Final Battle

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Sources checked: playstationtrophies.org, gamespot.com, youtube.com, steamcommunity.com, gamerant.com, reddit.com, hardcoregamer.com, thegamer.com