Genshin Impact’s fantastic princess Fischl has her own skin, Ein Immernachtstraum, which you can grab for free by participating in the “Resonating Vision” event.
To get Fischl’s skin, you’ll need to collect 16 Phantasmal Conches as part of the summer event. There are 20 conches, but you don’t need to collect all of them to get this skin.
If you don’t have Fischl, you can also grab her for free by completing the “Summertime Odyssey” event, though as of writing this, she’s not unlockable yet. More events need to roll out before you can get enough event currency to get her.
Note that this event will only be around until patch 2.8 ends, which should be around late August. After the event passes, you’ll have to buy Fischl’s skin for 1,680 Genesis Crystals.
If you’re on the fence as to whether or not you want to earn, buy, or use her skin, you can check it out in the showcase video below.
Update (July 17): Enough conches have been added to the event so you can now unlock Fischl’s skin if you get them all. This guide has been updated to reflect this.