Gender: Male Rudeus was born as the eldest son of Paul and Zenith in Buena Village, Fittoa Region, Asura Kingdom. He specializes in voiceless incantations and later develops powerful magical items such as Magic Armor. He also serves as a subordinate to the Dragon God Orsted. He has three wives: Sylphiette, Roxy, and Eris.

Gender: Female She was bullied as a child until Rudeus saved her, becoming her first friend. She learned magic from Rudeus and mastered voiceless incantations. After being teleported to the Asura Kingdom during the Fittoa Region Displacement Incident, her green hair turned white due to mana exhaustion. She reunited with Rudeus at the Ranoa University of Magic, hiding her identity as "Fitz the Silent" while connecting with him. She eventually healed Rudeus's emotional trauma and they officially married.

Gender: Female Race: Migurd (She looks like a young girl, but her actual age is older than Rudeus's mother; she was in her mid-40s when first introduced). Ability: Water Saint-class (later Water King-class) mage. Personality: Extremely serious and hardworking, but has a clumsy side. Rudeus worships her, claiming "Roxy Migurdia is a Goddess."

Gender: Female Race: Human Starting as Rudeus's magic student, she traveled the harsh Demon Continent with him after the Fittoa Displacement Incident. They fell deeply in love, but after a desperate battle against the Dragon God Orsted, she decided to leave Rudeus to gain the strength necessary to protect him. After parting ways with Rudeus, Eris headed to the Holy Land of Swords and threw herself into the rigorous training of the Sword God Style.

Gender: Male Race: Human He grew up in an orphanage after losing his parents to a power struggle. Later, he studied abroad at the Ranoa University of Magic, where he met Rudeus and Sylphiette (Fitz). He fell in love with and earnestly proposed to Elinalise Dragonroad, who was forced to seduce men due to a curse, and won her heart.

Gender: Female She speaks with an elegant, lady-like tone befitting her appearance and has a free-spirited yet caring personality. She suffers from a curse where she will die if she does not regularly receive "semen from men," leading her to indiscriminately seek out unattached men. While she may have relationships with multiple close acquaintances simultaneously, her considerate nature means these rarely escalate into violent disputes. Exiled from her homeland, she has suffered through being a prostitute and a slave due to the curse, but she usually acts as if she enjoys her promiscuous lifestyle without worrying about the consequences. In reality, she takes care to cut ties and hide her name after her children and grandchildren become independent to prevent them from being persecuted because of her. She has been seen moved to tears watching her grandchildren's happiness, suggesting she had to adopt this personality just to survive with the curse. Perhaps due to constant persecution, she sometimes chooses to play the villain to resolve a situation.

Gender: Female Race: Elf Because elves have long lifespans and thin emotions, Frieren lacks an understanding of emotional nuances and rarely shows joy or sorrow. She has characteristic elven ears, twin-tails, and short, thick eyebrows. She is at least over 1,000 years old. However, she isn't completely devoid of feminine traits; she occasionally shows concern about her physique or goes out of her way to insist she is the "older sister" figure. She particularly hates being treated like an old person and never forgets an insult, no matter how many years pass.

Gender: Female Race: Human She usually wears a large robe as traveling gear, but even through it, she is clearly endowed with a large bust. When Frieren used her lap as a pillow, she grumbled that she "could only see half the sky." Regarding magic, both Frieren and Serie recognize her natural genius. Frieren was impressed by her mana control early on, and Serie, the master of Frieren's mentor Flamme, even tried to scout her as an apprentice. Her potential reminds both of them of Flamme's second coming. Personality-wise, she is basically serious and acts as a caretaker for the slovenly Frieren, leading fans to call her "Mama." She speaks politely and generally uses formal language with everyone. However, her speech occasionally becomes broken, such as using the word "pissed off" in conversation or saying her hands are "freezy-cold" when they are numb from the chill.

Gender: Male Race: Human A young man with red hair that is black at the crown. Most of his forehead is hidden by his bangs, but he has a large scar around his left eye and forehead, given to him by his master, Eisen. As mentioned, he has a cowardly personality. He can't stop shaking in front of opponents stronger than himself and is constantly driven by the urge to run away. He has been known to collapse and become unable to move just by sensing an enemy's strength, and he panics, shouting "Scary!!" at even trivial things (like a mushroom for cold medicine being the size of his torso).