Genshin Impact: I Start with the Twelve Talismans

In the vast, boundless universe, Chu Ge is an ancient and powerful Aeon whose destiny is enough to make the stars tremble. Yet he harbors a secret: a world he has long been searching for, Teyvat.

One day, while exploring the endless void, the Aeon of Trailblaze stumbles upon a barely perceptible planet: the Teyvat Chu Ge has been seeking. To thank the Aeon of Trailblaze for the help, Chu Ge agrees to Aha's terms: he will stop Aha from damaging the train for a set period of time in exchange.

When Chu Ge sets foot on Teyvat, he senses an aura that is both familiar and strange. Images of the future rise from the depths of his memory: Teyvat will suffer a cataclysmic destruction. To prevent this tragedy, Chu Ge decides to take extreme measures and set Teyvat back on the right course. He seals away his Aeon powers and locks his memories in the deepest part of his soul. Then, using the power he has left, he transforms himself into a full-fledged Teyvat Archon.

(Multiple heroines + Healing regrets + Invincible + Aeon)