It is located at the "Cave of the Wilderness". After entering by taking the elevator, you can reach it by walking along the road.
1. Take the elevator : Go to the elevator at the "Cave of the Wilderness" and arrive directly after taking the elevator.
2. Defeat all the bleeding dogs : After entering the Quadrant of Wishes, you will encounter some bleeding dogs, and you need to defeat them to return the fire.
I hope this information can help you, and I wish you a happy game in Genshin Impact!