GenshinImpact has a gacha system for weapons and characters called
Wishes. Like most other gacha games, it is possible to do a Reroll. Rerolling refers to restarting the game by erasing the data and reinstalling the game in order to try for a better gacha result. It’s also possible to use an Item called Primogems to gain more Wishes as an alternative to rerolling.
It takes around 40-50 Mins toReroll
You can unlock the game’s gacha feature after reaching adventurer rank 5. It doesn’t seem like a lot but it actually takes almost an hour to get to this rank. This is an extremely long time needed for a single reroll compared to other gacha games.