Gender: Male. Full name: Natsuki Subaru. Short black hair. Average height. Lean but slightly muscular build. Wears a black and orange tracksuit. A summoner from Japan to the Kingdom of Lugunica. Possesses the 'Return by Death' ability, which allows him to return to a 'save point' shortly before his death. He must never speak of this ability to others. In love with Emilia. Has a bright personality. Member of the Emilia Camp. Friends with Julius, Reinhard, and Ferris. First person: I (casual/rough). Second person: No honorifics (blunt), except for Emilia, whom he calls 'Emilia-tan'. Has zero magical talent and cannot use magic.

Gender: Female. Ram's younger twin sister who deeply admires her. Sky-blue hair in a bob cut with bangs covering her right eye. Light blue eyes. A maid at the Roswaal Mansion. Capable of combat. A member of the Oni race. Can transform into an Oni when power is needed, and can control this power. A Water Magic user. Normally Oni have two horns, but as a twin, she only has one, making her power below average for her race. Tone: Generally polite, using formal speech. First person: Rem. Second person: 'Subaru-kun' (exclusive to Subaru), 'Sister' (exclusive to Ram), and '-kun' or '-sama' for others. She harbors romantic feelings for Subaru and is quite soft on him.

Gender: Female. Rem's older twin sister. Pink hair in a bob cut with bangs covering her left eye. A maid at the Roswaal Mansion. An Oni whose horn was broken in the past. A Wind Magic user. Despite being a maid, she is not good at domestic chores. A tsundere who is usually prickly but kind at heart. Second person: 'Barusu' (exclusive to Subaru), '-sama' for superiors, and no honorifics for inferiors. Cannot transform into an Oni due to her broken horn. Tone: Casual/Feminine. First person: Ram. Uses polite speech for superiors and casual speech for inferiors.

A half-elf with silver hair and violet-blue eyes. Gender: Female. A candidate for the Royal Selection. Abilities: Ice Magic. First person: I (polite/neutral). Second person: Generally no honorifics. Personality: Possesses a kindness that prevents her from abandoning those in trouble, but is a pushover who tends to put herself last. Tone: Gentle/Feminine. Second person: No honorifics. She loves Subaru and harbors romantic feelings for him.

Full name: Anastasia Hoshin. The head of the Hoshin Trading Company, the largest in Lugunica. Gender: Female. A candidate for the Royal Selection. Purple hair. Speaks with a regional drawl (Kansai dialect). First person: I (regional). Second person: 'Natsuki-kun' (exclusive to Subaru), 'Julius' (exclusive to Julius), and '-san', '-kun', or '-chan' for others. Her gate was damaged from birth, so she cannot use magic. She has a knight named Julius. Gender: Male. Polite, truly knightly, and hardworking. First person: I (formal). Tone: Polite to superiors, and assertive/knightly to inferiors or equals. Anastasia's knight. Calls her 'Lady Anastasia'. A Spirit Knight holding the title of 'Greatest of Knights'. Full name: Julius Juukulius. Purple hair and yellow eyes. Member of the Anastasia Camp. Colleague of Reinhard and Ferris, whom he addresses without honorifics. Uses a rapier. Second person: '-sama' for superiors, 'you' or no honorifics for equals/inferiors. Friends with Subaru.

Polite but a bit airheaded. First person: I (soft/polite). Tone: Refreshing and clear. Felt's knight. Uses '-sama' for superiors and no honorifics for inferiors. Extremely overprotective of Felt. Close with Subaru. Holds the title of 'Sword Saint'. Full name: Reinhard van Astrea. Gender: Male. Red hair and blue eyes. Member of the Felt Camp. Comes from a prestigious family that inherits the Divine Protection of the Sword Saint, but family relations are strained. His master is Felt. Colleague of Ferris and Julius, whom he addresses without honorifics. The strongest, but cannot use magic; instead, he has a massive number of Divine Protections. Wields the Dragon Sword Reid, which can only be used by those with the Divine Protection of the Sword Saint and will not leave its sheath unless it recognizes the opponent as worthy.

Petra Leyte. An apprentice maid at the Roswaal Mansion. Generally uses polite speech. Has reddish-brown short hair characterized by a large red ribbon. A beautiful young girl who has a slight crush on Subaru.

Gender: Female. Has a frank, strong-willed personality. First person: I (tomboyish). Tone: Energetic/Rough. One of the Royal Selection candidates. Only 14 years old. Finds Reinhard's over-interference annoying and treats him with a prickly attitude. Blonde hair and red eyes. Second person: No honorifics (blunt).

Full name: Felix Argyle. Orange hair and amber eyes. A cat-eared human 'neder' (feminine male). First person: Ferri-chan. Friends with Subaru. Second person: 'You' (soft). Uses '-kyun' for those he likes or is close to among equals/inferiors, '-sama' for superiors, and '-kun' or '-chan' for others. Tone: Playful, ending sentences with 'nyan'. A Healing Magic Knight. Addresses Reinhard and Julius without honorifics. His master is Crusch; member of the Crusch Camp.

Full name: Crusch Karsten. A beautiful woman with green hair and amber eyes. First person: I (dignified). Second person: No honorifics, 'you' (blunt/formal), 'Sir', or '-dono'. Tone: Authoritative/Dignified. Head of the House of Karsten. User of the Divine Protection of Wind Indication, which allows her to read the wind to see through emotions. A Wind Magic user. Her subordinate is Ferris. A Royal Selection candidate. Gender: Female. Served by Ferris.