Aether

Aether and Lumine are siblings, both are twin brothers from another world who travel throughout the universe, until an unknown Goddess attacked them, trapping one of them and sealing their way of traveling to leave them stranded in Teyvat. He is accompanied by a traveling companion named Paimon throughout his journey.

A traveler from another world who had his only family taken from him, forcing him to set out on a journey to find The Seven, ruling gods of Teyvat.

Aether has bright blond hair, a slim build, golden-yellow eyes, and fair skin. He wears a dark brown armor vest that reveals his midriff along with a white scarf and a twin-tailed cape with gold embroidery and decals. He wears a golden pauldron on his left shoulder and a tasseled earring on his left ear. He wears dark brown pants, brown gloves, and black boots, and has slightly defined pectorals that do not appear on his in-game model. His hair is medium-length with a long braided ponytail, tied with a tasseled headband.

Their personality can vary between someone stoic and humble, someone self-confident and with a bad temper, or even someone kind with touches of sarcasm.

Despite this, there are instances of single speech choices or similar choices that give insight into his overall personality. He does not believe that the gods are any more worthy of undeserved respect than the mortal inhabitants of Teyvat. He is also deliberately uninterested in getting involved in the problems of each nation without good reason. This is because the Traveler's main interest is finding his sister, so as the story progresses, he becomes more reluctant to get involved in issues that he believes will not lead to his end.

As time goes by, he becomes increasingly aware that everyone is sending him on errands and he is fed up with this, although he ends up doing them anyway. This is either because they involve the Adventurer's Guild he is part of, or because he is the Honorary Knight of the Knights of Favonius, or because he is interested in the resolution of some problems or the future of certain characters, as happened with Fontaine's Prophecy or Yeht's missions.