The Three Realms Gateway Offering is a 40-day event that runs from Feb. 17, 2022, to Mar. 30, 2022. Within this limited-time version of Enkanomiya, you can play through an array of new puzzles unique to the Three Realms Gateway Offering.
In the east of the region, where the Evernight Temple is usually located, you'll find a Guiding Light Mirror puzzle hidden inside a ruin. Start by heading to the area circled in the image below. Make sure to bring a character that can apply Cryo.
In front of the ruin, you'll find a Time Trial Challenge. Complete it to obtain a Chest and unlock the entrance behind it. Once inside, you'll immediately spot a Guiding Light Mirror puzzle.
Solve the puzzle by following the steps below in any order. Assuming that the glowing mechanism is behind you, use the image above as a reference for the Mirror labels:
- Step one: Apply Cryo to Mirror #1.
- Step two: Rotate Mirror #2 once.
- Step three: Rotate Mirror #3 once.
Once those adjustments have been made, activate the Bokuso Box beside the glowing mechanism to prompt it to shoot out a ray of light, which should light up the floating stone at the other end of the room. You'll be rewarded with an Exquisite Chest for completing the puzzle.
Check out our guide on How to solve the Guiding Light Mirror puzzle northeast (underground) of the Three Realms Gateway Offering in Genshin Impact to solve a similar puzzle within the same island.