Genshin impact hunger games au (xiao x fem!reader)

Xiao and the other genshin impact cast are isekaid to Panem, just at the time of the 74th hunger games, with elaborate backstories and false memories. How does this change the future of Panem and how will Xiao go back to his old world when he already has someone, in this universe? I just got this idea so ye, very ra...