Precious Chest on Seirai Island. : r/GenshinImpactTips
I mostly mapped all the fruit locations in Seirai Island. If you gather all of them, it is enough to ascend Raiden Shogun to lvl 90. (Those Banner Icons are just challenge
All Luxurious Chest locations in Genshin Impact - Charlie INTEL
2 Secret Luxurious Chests 1 Achievement] Super Complicated Underground Puzzles in Seirai Island - YouTube