One of the two possible protagonists in Genshin Impact and the twin brother of Lumine. Voiced by Horie Shun in Japanese. If chosen as the player character, he is referred to in-game by the name set by the player or as Traveler by most people in Teyvat. If not chosen as the player character, he is instead the leader of the Abyss Order.
His true name is Aether in English, Kōng in Chinese and Sora in Japanese (all three meaning 'sky'). In Teyvat, his true name is only used by his sister.
