Lucia, Hanon, Rina: the Mermaid Melody trio's different strengths
Hanon’s easy sociability and Rina’s reserve give Lucia different ways to feel at home in the human world. Their shared mermaid identity turns friendship into practical solidarity without making either girl a simple romantic foil.

Coverage: Covers the early anime’s introduction of Hanon and Rina and their support for Lucia; no later developments.
Friendship starts with different social temperatures
Lucia arrives in the human world carrying a private history and a difficult attachment to Kaito. Hanon and Rina do not simply echo her feelings back to her. Hanon is outgoing, quick to engage with people and comfortable bringing energy into a room. Rina is more reserved, often giving an impression of thoughtfulness and distance. Their differences matter because Lucia encounters support in more than one register.
Hanon’s openness can make a new environment feel available. She offers the kind of company that turns an awkward situation into a shared one, with conversation moving outward toward other people and daily life. Rina’s quieter presence offers another rhythm: companionship need not mean constant reassurance or a matching temperament. Together they keep Lucia’s world from narrowing to the one person she is searching for, while allowing her to remain distinct within the group.
A shared identity creates immediate trust
The girls’ common identity as mermaid princesses gives their friendship a foundation that ordinary classmates cannot provide. They understand the unusual obligations that accompany Lucia’s human life and the danger connected to the sea. That shared knowledge makes practical cooperation possible: they can respond to the same threats without first explaining why those threats matter. The bond is not only emotional closeness; it is a way to act together.
Yet the series does not make shared identity erase personality. Hanon’s expressive manner and Rina’s reserve remain visible even when they stand on the same side. That difference keeps the group dynamic from feeling like a uniform team assembled to support a heroine. Their alliance has an everyday texture because each girl brings her own way of reading a situation. Lucia is helped by their common purpose, but she also has to relate to two people who do not behave alike.
Hanon’s openness makes room for ordinary life
Hanon’s sociability is useful to Lucia in a specific way: it keeps friendship from being defined only by emergency. An outgoing friend is often the one who starts an exchange, makes a place feel less forbidding and invites another person into the social present. That matters in a story where Lucia’s attention can easily be pulled toward Kaito and the rescue that connects them. Hanon helps make room for experiences that are not extensions of that longing.
Her openness should not be reduced to a romantic function. A character can be interested in relationships and still contribute more broadly as a friend. Hanon’s energy makes the mermaid group feel socially alive, with talk and reaction alongside duty. She offers Lucia a kind of closeness that asks for participation: be present, respond, join the moment. This companionship does not solve Lucia’s secret, but it gives her human-world days more than one emotional center.
Rina’s reserve is another form of presence
Rina’s quieter manner provides a useful counterpoint. Reserve can make support less immediately legible than Hanon’s enthusiasm, but it does not make Rina absent. Her presence suggests that friendship can be steady without being demonstrative, and that a person may contribute by observing carefully as much as by filling silence. For Lucia, that difference broadens the meaning of being understood: not every ally has to meet vulnerability with the same style.
The early group therefore resists a familiar flattening in which girls exist mainly as rivals or romantic mirrors. Hanon and Rina have individual temperaments, a shared responsibility and relationships to Lucia that are not interchangeable. Their friendship gives her practical solidarity and different forms of everyday company. The result is a trio whose closeness comes from coordination without sameness. Lucia’s world grows larger not because her friends repeat her story, but because they give her other ways to live inside it.
Primary work & further reading
Primary work: Mermaid Melody. Character and story readings are editorial interpretations. The publisher reference below identifies the work and its premise.



