Ganyu joins Genshin Impact on January 12, and upon her arrival, players who have reached AR40 or higher will be able to play through a new story quest.
"Sinae Unicornis Chapter" will, as usual, require players to have unlocked the Story Keys by completing Daily Commissions. Note that those are available to all players who have reached Adventure Rank 26 or higher.
You will also need to complete the Archon Quest: Chapter I: Act III - "A New Star Approaches" in order to unlock the Ganyu Story Quest.
Original content by "ZeroAk".