Is there something wrong with playing Genshin Impact in the dungeon?

Ling Shu transmigrated, bringing the 'Genshin Impact System' to the labyrinth city of Orario.
"Can the weapons and characters obtained from gacha pulls be summoned and used in the real world?"
"That's good. But... why do I have to choose a villainous familia to join at the start?"
"This is very problematic."
P.S.: This is a DanMachi fanfic~