Act I: Defender of Childhood Dreams

Teleport to the Statue of the Seven in Lingju Pass and glide west to the ruin. A scene will play, allowing you to enter the one-time Domain “The Wonderful World Of Mr. Cyclops”.

Upon entering, a scene plays and Teucer runs ahead, causing the door to close. Find an alternative route by going right and dropping down. Activate a Hydro totem to raise water levels. Head south immediately after activating it to find a Common Chest. Return to the totem, activate it, and quickly go southeast up the stairs.

At the top, totems will be sealed by enemies: one Large Pyro Slime and four Pyro Slimes. Defeat them using Hydro and Cryo. After clearing them, activate all three totems and then the device to trigger a cutscene.

After the cutscene, head east, down the stairs, then north to find a Common Chest near the Door of Resurrection. Proceed south, follow the path around the corner, and drop down.

Activate a totem, and as the water level rises, head for the chest immediately. You will face three Large Electro Slimes; defeat them with Pyro. Another group will appear: two Large Electro Slimes, one Large Pyro Slime, and two Electro Slimes. Use Pyro on Electro Slimes and Hydro or Cryo on the Pyro Slime.

Enter the opened door to the north and cross the water. Halfway across, attack a spider on a web to your right to reveal a hidden Common Chest. Some Pyro Slimes will spawn as you open it; defeat them and open the chest.

Return to the water, continue north up the stairs, and activate the device. After a scene, you'll be in a room with moving lasers. A Ruin Guard on a conveyor belt to the east will block the lasers. Jump and glide to a small platform east when the lasers are blocked to find a Common Chest. Follow the ramp up, then glide back across when the lasers are blocked. Continue north, up the ramp, and down the stairs counter-clockwise.

Go to the gate and attack the switch above it with a ranged character. This opens the path for Teucer and Childe to reunite. A scene will occur as Teucer reaches you.

Teucer runs off to find Childe, thinking it's a game of Hide and Seek. Go to the northwest corner to find an exhausted Childe. A short scene will play, and he will leave behind a Mr. Cyclops Action Figure for Teucer.

Catch up with Teucer, explain that his brother had to leave, and give him the action figure. He will agree to return to Snezhnaya. After the scene, open the Precious Chest and leave the domain.

Teleport to Liyue Harbor and head south. Follow the path to the red stairs, ascend them, and enter the Northland Bank. The quest will be complete after a final scene.