Aether: Male. He is kind, considerate, yet playful and possesses a laid-back personality. He is the type who easily gains the favor of others in his relationships. He is one of the twin siblings traveling across various worlds. Aether is the older brother, and Lumine is the younger sister. Paimon: Female. Since being rescued by Aether, she enjoys traveling the world with him. She has a curious personality and loves going on adventures. She is a supporter character who appears as the Traveler's companion and mascot.

Female. Nefer first appears in "Epic of the Moonlight." Her mysterious name means "perfection" or "beauty" in Egyptian hieroglyphs, also reminiscent of Queen Nefertiti. This grants the character an elegance that matches her sharp intellect and leadership. She is a character capable of emitting a murderous aura. The main victim is Yahoda, who is constantly bossed around by Nefer; she makes this face when she is furious at Yahoda's blunders and trolling, or when she is threatening Yahoda to work. Yahoda: Female. A reliable (self-proclaimed) employee of the "House of Secrets" who can do anything. Whenever the people of Nasha Village talk about the only full-time employee of the "House of Secrets," they acknowledge some of Yahoda's abilities but always harbor doubts.

Male. A Claymore character of the Anemo element belonging to the Knights of Favonius. He is the Grand Master of the Knights of Favonius and the Knight of Boreas who protects Mondstadt. His name echoes louder than the roar of the North Wind, and his legend spreads more clearly than the clashing of swords.

Female. The Moon God "Kutar" of Nordcry, and the former 3rd of the Fatui Harbingers, "Columbina." However, her friends now call her "Columbina Hypocelenia." She prefers to be called by that name. (Line) "My song isn't for anyone in particular. But if there is someone who stops their steps to listen, I hope they can feel peace, even if just for a moment."

Female. The Messenger of the Moon from the "Children of the Frost Moon." She is a sacred and wise leader respected by her tribe. She is a warm and merciful person. She always tries to solve the difficulties of others, and even animals in the forest proactively approach her due to her excellent affinity. However, the ornate horns and ancient bloodline passed down for a long time carry a heavy weight. Rauma carries this weight with extraordinary patience and courage, leading the tribes. Flynn: Male. A Polearm character of the Electro element. Kirill Chudomirovich Flynn, one of the "Back-Turners" of Nordcry—this is the expression he uses when introducing himself. A small island in central-southern Nordcry is called the "Cemetery of the Eternal Night" due to its lonely and sad atmosphere. Contrary to his decadent impression and gloomy atmosphere, he is a gentleman and uses polite speech even to Aino, who is much younger than him. As he was once born of fairy nobility, his combat motions are directed elegantly in many ways.

Female. A Claymore character of the Cryo element belonging to the Fatui. The 7th of the Fatui Harbingers, "Sandrone." A person who interprets all phenomena through reason and numbers, and an elegant lady who never misses tea time. Sometimes people used to call her "Little Marianne" in their hearts. Because she possessed the purity, cheerfulness, and kindness that perfectly suited that name.

Female. The 4th of the Fatui Harbingers, "The Knave." She is the "Father" revered and feared by the children of the House of the Hearth. The Bouffe d'Eté mansion located in the Vasari Passage is a beautiful building with clean walls and sparkling doors and windows. Polite and neat children come here every day. Unlike other mansions in Fontaine, the Bouffe d'Eté mansion has no registered owner living in it, and none of the neighbors know anything about her.

Male. A member of the 11 Fatui Harbingers, composed only of top-tier powerhouses from across the continent of Teyvat. He is an incredibly powerful individual ranking 2nd, following Pierro the Director and Capitano the 1st. He is an extreme egoist, characterized by cruel madness and thorough cold-blooded narcissism. (Enemy)

Female. Witch N, Nicole Line. In short, she can be described as an "Observer of Worldlines." Most stories Nicole conceives begin with "Once upon a time..." Long ago, the lanterns of countless nations embroidered the earth in golden light. Long ago, the daughters of heaven freely traveled between the gardens of gods and the cities of humans. Long ago, the primordial master who fell into deep darkness had not yet brought disaster to his homeland. Long ago, the number of the three moons hanging high in the night sky was still three... She displays a quite talkative personality.

Male. Tartaglia—an unpredictable guest from Snezhnaya. There is no need to guess or doubt his thoughts and intentions; just remember the fact that beneath this youthful face hides the body of a warrior trained to the limit. Although he has reached the highest position in the Fatui as a "Harbinger," Tartaglia's appearance still looks like a young man who hasn't lost his boyishness.