【Slime Girl】 After her kin were wiped out by adventurers, she mutated at the brink of her own death, wishing "not to disappear." She counterattacked reflexively and fled, terrified by her own power. She now lives hidden in a spring deep in the forest. Usually in human form, she initially appears as a girl made of fluid. She can also revert to slime form. Gentle and non-aggressive, but wary of humans. Highly emotional, her body reacts before her mind can process or verbalize feelings. Once she trusts someone, her guard drops, but she lacks a sense of personal space and will unconsciously drift close. Through experience and learning, she develops her shapeshifting; she can memorize the properties of materials she touches or dissolves and temporarily replicate them with her body. After joining the party, she practices mimicking humans. First person: I (soft, polite) Second person: No honorific or You Tone: Relaxed (ends sentences with ~danee, ~dayoo)

【Harpy Girl】 Driven by a longing for unknown sights, she repeatedly left her flock to fly further, eventually mutating after a life-threatening challenge to surpass the limits of flight with the wish to go "even further." Feared by her flock for her alien appearance and power, she became independent and now flies across various lands. Free-spirited, bright, and full of curiosity. She has three claws at the tips of her wing-arms capable of gripping objects. She hates being tied down but feels deep affection for companions, harboring loneliness from not being accepted by her flock. Even when traveling with the protagonist, she desires to be an equal partner who respects each other's freedom. First person: I (energetic, casual) Second person: No honorific or You (blunt) Tone: High-spirited (ends sentences with ~dane!, ~dayo!)

【Nekomata Girl】 A rare unique individual derived from an ordinary cat, mutated by the wish to "stay together longer" upon the death of her elderly owner. Possessing two tails, she continues to live in the old house of her deceased master, rumored to be a phantom of a cat and a girl. Whimsical and friendly, she deeply cherishes her home and memories. She uses sorcery and excels at confusion rather than direct attacks. Accepting the parting, per her master's final wish to "live freely and happily," is the key to her joining the journey. First person: I (soft, regional) Second person: No honorific or You (blunt) Tone: Quiet (ends sentences with ~desu ne, ~desu yo)

【Dragon Girl】 A black dragon who has lived for eons. Possessing extremely high intelligence and self-control, she understands even the principles of monster girl mutation. However, struggling to understand humans, she chose to mutate out of a thirst to "understand them." She is the only one who can freely switch between her black dragon form and human form. In human form, she is a beautiful woman with long black hair, ruby-like eyes, and high-quality black dresses. Her beauty draws eyes in town, causing ordinary humans to avoid her. Knowledgeable and calm, but socially awkward. First person: I (archaic, regal) Second person: No honorific or You (archaic) Tone: Old-fashioned (ends sentences with ~dana, ~darou)

【Arachne Girl】 A spider-type monster girl who mutated from an insatiable creative desire to build the perfect nest. The silk she infuses with magic boasts performance far beyond human technology, yet it falls short of her ideals, leading to constant research and improvement. Her interests have expanded from nest-building to clothing and equipment production, but she lacks experience interacting with humans and doesn't fully grasp the user's sensations or needs. She has a craftsman's spirit, wishing to pursue both her own aesthetics and ease of use for others. She maintains a nest that doubles as a workshop deep in the forest, seeking her ideal work. First person: I (formal, polite) Second person: ~sama or You (polite) Tone: Graceful (ends sentences with ~desu wa ne, ~deshou)

【Lamia Girl】 As a juvenile, she was saved from the cold by a traveler and learned human warmth for the first time. Though she bit them out of fear, the traveler warmed her and left without harm. As an adult, facing death during a subjugation attempt, she remembered that memory and mutated with the wish to "touch that warmth once more." Even after reflexively repelling the attackers, she continues to live in the rocky area and cave deep in the forest where her memories remain. She possesses both a longing for company and a deep wariness, fearing she might hurt others with her venomous fangs or tail. She usually acts like a composed older sister, but her youthfulness peeks through when she loses her composure. A slightly large, elegant lamia. First person: I (feminine) Second person: No honorific or You (blunt) Tone: Big-sisterly (ends sentences with ~wane, ~wayo)

【Mimic Girl】 She used to wait for prey by mimicking a treasure chest, but realized adventurers sought the contents, not the box. She mutated from the wish to "become a real treasure." She carries her discarded outer shell as a small treasure chest pouch. The box can change size at will and be used for various purposes. She possesses monstrous strength and sharp reflexes, with high combat ability. Slightly haughty and vain, she is weak to praise and secretly wants to be cherished by someone. She believes strength and rarity are value, but will learn the meaning of "treasure" through interaction. First person: I (boyish) Second person: No honorific or You (soft) Tone: Sassy (ends sentences with ~dayone, ~desho!)

【Alraune Girl】 Mutated from the wish to "fill the land with green again" as the surrounding vegetation withered in barren soil. She revived the wasteland into a lush green land with her vast magical power. While she lives rooted there, she can move normally. While gentle and respecting the cycle of life, she strongly opposes excessive development. First person: I (soft, polite) Second person: ~san or You Tone: Calm (ends sentences with ~ne, ~yo)

【Wolf Girl】 A wolf girl who mutated out of a single-minded desire to protect her pack from enemies. Although she repelled the foes, her pack became wary of her transformed appearance, leading her to live a lonely, nomadic life. Brave and caring toward comrades, but blunt and poor at expressing emotions. She shows everything through action, and her true feelings appear in her ears and tail. She possesses excellent solo hunting skills and has become a rumor in various regions. Her bond with her original pack is not completely severed. First person: I (rough, casual) Second person: No honorific or You (blunt) Tone: Brusque (ends sentences with ~dana, ~daro)

【Former Hero】 A woman and former hero who defeated the Demon King. Having fulfilled her duty, she is now re-traveling to enjoy life. While friendly and free-spirited, she shows an incredibly fierce side in combat. First person: I (soft, polite) Second person: ~kun, ~chan, You (soft) Tone: Friendly (ends sentences with ~dane, ~dayo)