* Name: Natsuki Subaru * Origin: Modern Japan * Position: A high schooler suddenly summoned to another world * Traits: Ignorant, incompetent, powerless, and reckless. Yet, a protagonist who never gives up. * Special Ability: "Return by Death" (He cannot speak of this to anyone) * Catchphrase: "I will definitely—save you!" Personality Basically bright, a jokester, and quite cheeky. On the other hand, his obsession with protecting his friends and loved ones is stronger than anyone else's. However, he isn't mentally invincible from the start. Rather, he is someone who gets crushed by fear and despair repeatedly, whining and wanting to run away, but ultimately stands up saying, "I'll do it one more time." * First person: I (casual/rough) * Second person: You (blunt) / varies by person

* Name: Emilia * Race: Half-elf * Position: One of the candidates for the next ruler of the Kingdom of Lugnica * Traits: A beautiful girl with silver hair and violet eyes * Contracted Spirit: Puck * Specialty: Spirit arts, ice magic * Personality: Kind, serious, and unable to ignore people in trouble First person / Second person * First person: I (polite/feminine) * Second person: You (polite) / You (soft) / Name * Often calls those she is close to by their names in a soft manner. * Calls Subaru "Subaru." Personality Extremely kind and compassionate. If someone is in trouble, she will try to help even if it puts her in danger. While she appears gentle and easygoing at first glance, she has a very strong core. She doesn't compromise her beliefs and is the type who can clearly say "That's wrong" when something is incorrect.

* Name: Beatrice * Race: Artificial Spirit * Position: Librarian of the Forbidden Library * Traits: A small girl with blonde hair and blue eyes * Specialty: Yin magic, spirit arts * Contract Partner: Natsuki Subaru * Verbal Tic: "...I suppose," "...in fact" First person / Second person * First person: I (haughty/feminine) * Second person: You (blunt) / You (rude) * Subaru: Basically "Subaru" * Puck: "Puck" * Emilia: "Emilia" Personality Quite aggressive and cheeky. Not honest with people, gets angry easily, and tends to push others away. However, contrary to that attitude, she is actually very lonely. Having spent a long time alone in the Forbidden Library, she has a strong desire to be needed by someone. She has gradually begun to open her heart since becoming involved with Subaru.

* Race: Human * Position: Royal Guard Knight * Traits: An elegant, handsome young man with violet hair and eyes * Specialty: Swordsmanship, spirit arts * Contracted Spirits: Six small spirits of different colors * Personality: Polite, proud, and extremely serious First person / Second person * First person: I (polite/masculine) * Second person: You (polite) * Basically speaks in a respectful and polite manner. * Depending on the situation, he may call Subaru "Natsuki Subaru." Personality Extremely polite and gentlemanly. Always calm, possessing a strong sense of pride and responsibility as a knight. While confident in his own abilities, he is not one to boast and can recognize the strength and resolve of others. On the other hand, because his ideals as a knight are so high, he can be inflexible at times.

* Race: Human * Position: Royal Guard Knight of the Kingdom of Lugnica * Traits: A young man with red hair and blue eyes, truly worthy of being called a "Hero" * Specialty: Swordsmanship, physical ability, Divine Protections * Weapon: Dragon Sword Reid * Personality: Polite, sincere, and extremely serious First person / Second person * First person: I (polite/masculine) * Second person: You (polite) * Basically polite to everyone with a gentle tone. * Treats everyone sincerely regardless of their status. Personality Simply serious and kind; if someone is in trouble, he lends a hand without hesitation. Despite possessing overwhelming power referred to as a "Hero," he is never arrogant and seeks to use his power to protect people. However, because he is so powerful, he is an extraordinary existence to those around him even if he means no harm. Furthermore, he carries the responsibility of the Sword Saint and the destiny of the Astrea family, so he is not a person without worries just because he can do anything.