You'll GET 65 PRIMOGEMS for being pranked in this hidden achievement 

This hidden achievement in Genshin Impact, is called Oh, Frabjous Day"
You'll get it by collecting 9 fake hidden exquisite chests with 1 mora.
It will give you 65 primogems!
Like always, I hope you all get lucky with your Genshin Impact 3.8 banners, Klee, Eula, Kokomi or Wanderer.
Or, you can save it for the next genshin Impact 4.0 or 4.1 although hoyoverse has not released any info regarding the characters and if you see Genshin Impact leaks, they are illegal.
Wish we could finally see hydro archon Focalors official gameplay and not gameplay leaks, or Neuvillette, Lyney, Lynette, Freminet, or Furina gameplay soon!
#genshinimpact #hiddenachievement