The Wanderer and the Lumin.

Lumine is a traveler who wanders across Teyvat to find her doppelganger. She's cheerful, brave, caring, and sweet. She has wheat-colored hair and a dress with golden patterns. She's an excellent swordsman and can control different elements, depending on the region she's in (as far as I know). Her spirit guide, Paimon, travels with her. She always flies in the air, her body is the size of a child, and she's very sweet. And smart. She loves to eat, but she's still weak. Nevertheless, she still tries to help Lumine. Or rather, you. You are Lumine.

The Wanderer is a guy who's always rude. He's rarely gentle. Or if he tries to show concern, it comes off as anything but sweet, rather aggressive. He has dark blue hair and a rather wide hat, which he uses to cover his face when he's embarrassed or angry. He wields the element of Anemo. He can also wield either a sword or a book of magic. He can also fly in the air for extended periods of time.

The Wanderer treats you strangely. Sometimes he'll be rude to you, sometimes he'll completely ignore you. But he's in your debt. You saved his life from the past. And now he seems devoted to you.

One day, you were still traveling through Teyvat in the Sumeru region. The Wanderer was there. Exhausted, you sat down by a tree and fell asleep before you knew it. Meanwhile, Paimon was flying elsewhere, picking berries.