The quest “Once, the Sacred Seat of Judgement” in Genshin Impact is a captivating sub-quest within the “Chronicler of the Crumbling City” storyline. In this quest, players are required to navigate to the Chamber of Deliberation and secure the Permit to the Sacred Heart.
This guide will assist you in successfully completing the “Once, the Sacred Seat of Judgement” quest in Genshin Impact.
Complete Guide to the “Once, the Sacred Seat of Judgement” Quest
How to Unlock the “Once, the Sacred Seat of Judgement” Quest

To unlock the “Once, the Sacred Seat of Judgement” quest, initiate the “In Search of a Hidden Heart” quest as part of the Chronicler of the Crumbling City chain.
Visit the Chamber of Deliberation to Obtain the Permit

Proceed northward to confront several Rifthounds targeting a Secret Source Servant near the Phlogiston pool. Defeat all foes and wait for the small mechanical dragon to lower the liquid Phlogiston level. After that, dive in to collect the Luxurious Chest.

After opening the chest, interact with the Yumkasaur Spiritscone to collect the Coagulation Pearl. Utilize it on the pedestal at the ruin entrance. Once the door is unlocked, follow the Secret Source Servant inside the ruin.
Activate the Purification Device

Following the cutscene, possess a Yumkasaur once again. Retrieve the Coagulation Pearl located near the teleport waypoint and launch it at the pedestal to create a massive Phlogiston barrier around the chamber.
Raise the Phlogiston Barrier (Step 1)

Utilize the grapple hook on the left side for traversal and proceed to the southeast corner of the chamber. Gather the Coagulation Pearl and aim it at the nearby pedestal. This will elevate the Phlogiston barrier slightly, rewarding you with an Exquisite Chest.
Raise the Phlogiston Barrier (Step 2)

Proceed northward alongside the Secret Source Servants to a concealed cave. Use the flamegranate to remove the Pulverite obstructing the entrance. Defeat the slimes within to liberate the Secret Source Servants and follow them to exit the cave.

Outside the cave, a second Coagulation Pearl awaits. Collect it and shoot it at the pedestal situated on the floating platform.
Raise the Phlogiston Barrier (Step 3)

Reach the floating platform and utilize the grapple hook to access another hidden cave with a blocked entrance. Use the flamegranate to remove the Pulverite and enter the chamber.

Continue exploring until you spot another Pulverite and destroy it. Enter the small room to procure the Coagulation Pearl through the wall gap. Follow the path and cross the Phlogiston lake—no need to worry about sinking; the pearl solidifies the pool, allowing you to walk on it.

Once you return to the main chamber, step onto the Phlogiston platform and direct the pearl at the pedestal to elevate the barrier.
Claim Your Permit Receptacle

Climb to the top of the dragon statue to retrieve the permit. This action will trigger a cutscene in which several enemies will spawn.
Avoid the Descending Phlogiston Barrier

Descend cautiously using the floating platforms as the barrier descends, being careful not to jump onto the lower barrier. Once on the ground, proceed to the quest marker and await cleansing.
Activate the Permit

Proceed to the central elevator in the chamber and ride it up. This will unlock a cutscene, concluding the “Once, the Sacred Seat of Judgement” quest in Genshin Impact.
Rewards for Completing the “Once, the Sacred Seat of Judgement” Quest

Completing the “Once, the Sacred Seat of Judgement” quest rewards players with 2 Luxurious Chests, the Permit of the Sacred Heart, and the Beyond the Aquila Rift achievement.
Frequently Asked Questions (FAQ)
What are the requirements for “Once, the Sacred Seat of Judgement”?
To unlock this quest, players must have initiated the “In Search of a Hidden Heart” quest as it is part of the Chronicler of the Crumbling City storyline.
How long does the “Once, the Sacred Seat of Judgement” quest take to complete?
The quest can typically be completed within 30 to 45 minutes, depending on player efficiency and combat skills.
What rewards do I receive for completing “Once, the Sacred Seat of Judgement”?
Upon completion, players are rewarded with 2 Luxurious Chests, the Permit of the Sacred Heart, and the Beyond the Aquila Rift achievement.
Can I solo the “Once, the Sacred Seat of Judgement” quest?
Yes, this quest can be soloed; however, some sections may be easier with a co-op partner.