There is a secret hidden luxurious chest that you can get on the small island in the southeast part of Seirai Island of the Inazuma region. Seirai island was introduced in Genshin Impact 2.1 update, which was released on 1st September 2021. This article shows how to solve the electro totem puzzle to get the luxurious chest.
Unseal the Electro Totems
You will find three sealed electro totems at the eastern part of the small island in the southeast portion of Seirai Island. To unseal the electro totems you will need to clear three Hilicurls camps. The location of the three Hilicurls camps and electro totems is shown below.
Once you have unsealed the electro totems by defeating clearing the Hilicurls camps, hit them with an electro attack to activate them. When the three electro totems are activated, a boss will appear.
Defeat the boss and a luxurious chest will appear at the center of the platform with the electro totems.