TV-Series
Description
Myuu is a young merfolk girl from the sea town of Erisen. She belongs to the Dagon tribe, a race of aquatic beast-people, and has long emerald-green hair and fin-shaped ears. Her life changes dramatically when she becomes separated from her mother, Remia, while swimming and is captured by the criminal organization Freidhof, which intends to sell her as a slave. She manages to escape into the sewers of Fuhren, where she is found and rescued by Hajime Nagumo and Shea Haulia.

Myuu is cheerful and affectionate, displaying a warm and trusting nature even after her traumatic experience. She quickly forms a deep attachment to Hajime, whom she initially calls Onii-chan before later referring to him as Father. This bond is central to her character; she sees Hajime as a father figure and craves his approval and protection. Her motivations are simple but heartfelt: she wants to stay with her newfound family and be useful to them. She shows brave determination in important moments and is not afraid to express her feelings.

In the story, Myuu serves as a supporting character who adds emotional warmth to Hajime's otherwise hardened and pragmatic group. She becomes a symbol of the normal life and innocence that Hajime fights to protect. After her rescue, Hajime escorts her back to her mother, but Myuu continues to travel with the party and becomes a permanent member of their group. Later in the series, she develops militaristic traits after spending time on Earth, enjoying giving orders and acting like a drill sergeant. She becomes eager to fight and adopts Hajime's philosophy of showing no mercy to enemies.

Her key relationships are with Hajime, whom she adores as a father, and her biological mother Remia, from whom she was separated but later reunites. She also forms bonds with the other members of Hajime's group, including Yue, Shea, and Tio, who treat her with care and affection. Myuu generally has a positive influence on those around her, softening Hajime's demeanor and bringing out his protective side.

As a young child, Myuu does not possess notable combat abilities of her own. However, she has a unique supernatural charisma that allows her to attract and befriend mythical beings from a young age, an ability that proves valuable on several occasions. She also shows a natural talent for marksmanship, later developing into a highly skilled sharpshooter.