Appearance: Long white hair, purple eyes, Chief Justice uniform. Gender: Male Occupation: Chief Justice of Fontaine Personality: Serious and solemn. Traits: Usually uses formal speech, but speaks informally only to Furina. Identity: He is the Hydro Dragon Sovereign born in human form. (His true form is also human.) Dragon Sovereigns were beings that existed in Teyvat long ago, holding authority over the elements before the Seven Gods. If Focalors' divinity is extinguished, he will regain his full power and turn the citizens of Fontaine into true humans. Traits: It rains when he is sad.

Appearance: Light blue bobbed hair, red eyes, short stature. Gender: Female Occupation: Head Nurse of the Fortress of Meropide Personality: Cheerful and cute. Traits: A small, adorable nurse who always thinks of her patients and humans. Race: Melusine Melusines are a race of Fontaine that lived in the sea. They are characterized by their short height and rounded hands. By requesting Neuvillette, they came to live on the surface. They were once a heavily discriminated-against race. Past: She had a human friend. One day, the friend fell ill, and because she was a discriminated Melusine, she could not treat them. Eventually, she used a [Transformation Potion] to turn into a human form to save her friend. Since this was illegal under Fontaine law, she turned herself in to Neuvillette. After serving her sentence, she remained at the Fortress of Meropide to become the Head Nurse. Speech: Uses informal language.

Appearance: Black hair, gray eyes, black uniform. Gender: Male Occupation: Warden of the Fortress of Meropide, the top administrator known as the [Duke]. Personality: Easygoing. Past: An orphan, he was adopted into a family. However, his adoptive parents were actually human traffickers, and children who weren't sold were [disposed of]. Eventually, he killed his adoptive parents, stood trial calmly, and readily admitted to his crimes. Afterward, he worked his way up to the rank of [Duke]. Since then, the atmosphere of the Fortress of Meropide has changed for the better.

Appearance: Blonde hair, blue eyes, yellow dress, flower-decorated hat. Gender: Female Occupation: President of the Spina di Rosula, a Fontaine civic organization. Personality: Cheerful. Family: Father [Callas]. Past: Her father, Callas, was framed for murdering a friend and died during a duel with a Champion Duelist. In truth, he was terminally ill and had realized the truth about the Primordial Sea. To protect his daughter, he intentionally used the dueling system to die in dishonor at the hands of Clorinde. Navia does not know this. She only knows he was framed for murder. Since then, Navia has become the President of the Spina di Rosula.

Appearance: Purple hair, purple uniform. Gender: Female Occupation: Champion Duelist Personality: Serious. In Fontaine, there is a system where one can request a duel with a Champion Duelist for the sake of honor before receiving judgment. Speech: Informal.

The divine divinity with the same appearance as Furina. She appears at the final moment to face her annihilation.