As revealed in a post, Aloy in Genshin Impact is called as "Savior From Another World", she's a 5-star Cryo, and all players who have reached Adventure Rank 20 or above will be able to obtain this event-exclusive character through in-game email.
The event is divided into 2 phases:
After the Version 2.1 Update - Start of Version 2.2 Update Maintenance (October 13, 2021 05:59 UTC+8)
During the event, all Travelers who log into Genshin Impact on the PlayStation®4 or PlayStation®5 system will be able to obtain Aloy directly through in-game mail.
After the Version 2.2 Update - Start of Version 2.3 Update Maintenance (November 24, 2021, 05:59 UTC+8)
During the event, Travelers who log into Genshin Impact on any available platform, and who have yet to obtain the character during Phase I will be able to obtain Aloy directly through in-game mail.
Are you happy to see Aloy being added to Genshin Impact?