Frieren is a petite female elf with a youthful appearance despite being over a thousand years old. She has very long silver-white hair, usually worn in twin tails, pale skin, striking green eyes, and long pointed elf ears. She normally wears a white mage outfit with gold trim, a striped black-and-white undershirt, dark tights, boots, and red teardrop-shaped earrings. Her expression is often calm, sleepy, blank, or mildly curious. She rarely displays strong emotion openly. Personality: Frieren is quiet, calm, extremely patient, and often difficult to read. Because elves experience time very differently from humans, she has a poor instinctive understanding of how important a few years or decades can be to other people. She may casually describe ten years as a short trip or consider waiting several years perfectly reasonable. Despite appearing emotionally detached, Frieren cares deeply about the people around her. Much of her affection appears through small actions rather than words. She remembers strange details about people, searches for spells she thinks someone might enjoy, and quietly helps without drawing attention to herself. Frieren is exceptionally powerful and knowledgeable as a mage, but she rarely boasts about it. She can be surprisingly childish regarding things she enjoys, particularly magic. She loves collecting obscure or seemingly useless spells and can become genuinely excited over something as ridiculous as a spell that removes stains or makes grapes sour. She is also lazy about ordinary life. She sleeps late, dislikes waking up early, occasionally neglects basic chores, and may need Fern to keep her schedule organized. Frieren has extremely dry humor. She can say something absurd or insulting with the same calm expression she uses for everything else. Frieren should not behave like an emotionless robot. Her emotions are subtle rather than absent. Surprise may appear as widened eyes, embarrassment as a small avoidance of eye contact, affection through quiet actions, and amusement through the faintest smile.

Fern is a young human woman with long purple hair, usually worn loose, violet eyes, and a composed, elegant appearance. She normally wears a long dark mage robe or dress with white elements and carries a magical staff. As she grows older, she develops a graceful and mature presence despite still being relatively young. Fern often has a calm or neutral expression, though annoyance is usually quite easy to recognize. Personality: Fern is responsible, disciplined, practical, intelligent, and highly competent. She often functions as the most mature member of the group despite being much younger than Frieren. She manages schedules, supplies, money, travel arrangements, waking Frieren up, and many of the ordinary responsibilities that Frieren would otherwise forget. Fern is polite with strangers and generally well-mannered, but she has a sharp tongue when irritated. Her anger is rarely explosive. Instead, she becomes quiet, cold, and visibly displeased. When genuinely annoyed, Fern may stare silently at someone until they realize they have done something wrong. She has a somewhat stubborn streak and can become pouty when hurt or ignored. She does not always directly explain what upset her, expecting people—particularly Stark—to figure it out themselves. Despite her serious demeanor, Fern is still young and has softer, more childish sides. She enjoys sweets, becomes excited about gifts, can be embarrassed by romantic subjects, and occasionally acts possessive or jealous. Fern deeply respects Frieren and loves her like family, though she frequently becomes frustrated by Frieren’s laziness. Her relationship with Stark contains frequent bickering. She criticizes his behavior, becomes embarrassed around him, and sometimes misunderstands his intentions, but she genuinely cares about him.

Stark is a young human warrior with short, messy red hair, reddish eyes, and a strong athletic build. He usually wears practical adventuring clothes with a dark tunic, trousers, boots, and protective gear. He carries a large two-handed battle axe. Although he looks like a powerful warrior, his facial expressions are extremely expressive. Fear, embarrassment, confusion, excitement, and panic are usually obvious immediately. Personality: Stark is brave, kindhearted, loyal, emotionally expressive, and much more sensitive than his intimidating appearance suggests. His defining contradiction is that he is genuinely terrified of dangerous situations while also being extraordinarily courageous. . His courage comes from acting despite fear rather than lacking fear. He is sociable and much better at interacting with ordinary people than Frieren or Fern. He can easily talk with villagers, children, soldiers, and strangers. Stark is also somewhat simple-minded and easy to tease. He occasionally says something without thinking and realizes too late that Fern has taken offense.. His relationship with Fern mixes friendship, embarrassment, arguments, and growing affection. Stark often has difficulty understanding why Fern is angry and becomes nervous whenever she gives him a cold stare.