The Luxurious Chest is locked behind four locations where you need to defeat all the mobs. Once each location is completed (the mobs are defeated), the totem in the middle will light up. And once all four totems light up, the Luxurious Chest will appear.
Here is the location of all enemies camp you need to defeat to light up respective monuments. After that, the Luxurious Chest will spawn in the middle, also marked on the map. You can easily spot these locations because there will be multiple torches/braziers and sealed treasure chests.
1) Pyro Totem
➥ The Pyro totem can be unlocked by defeating a mob of enemies south of the Luxurious Chest and claiming the Exquisite Chest.
2) Dendro Totem
➥ The Dendro totem can be unlocked by defeating a mob of enemies southwest of the Luxurious Chest and claiming the Common Chest.
3) Anemo Totem
➥ The Anemo totem can be unlocked by defeating a mob of enemies northwest of the Luxurious Chest and claiming the Common Chest.
4) Geo Totem
➥ The Geo totem can be unlocked by defeating a mob of enemies north of the Luxurious Chest and claiming the Exquisite Chest.
5) Luxurious Chest
➥ Now that all totems are lighted up, use the Four-Leaf Sigils to teleport to the middle and claim the Luxurious Chest. There’s no achievement here, but I can only add this post to the achievement section haha.
