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Melty is the second Princess and heir to Melromarc throne, who later rise to become the Queen of Melromarc, succeeding her mother Mirelia.
In first glance she is polite and befitting of her image as the princess, but it is just a persona for others to save face.She always cared for her political image that is until she met Nafoumi.Her real personality is that of any child of her age, which came seeping out after her time spend with Nafoumi. This confuses Melty herself, as she realize her own behavior was out of the ordinary.Because of her mother hobbies, Melty developed a great interest in Filolial which was later overtaken by Motoyasu.It was because of which she was attracted to Filo. Nafoumi who had trust issue was able to trust malty because of Filo who is a good judge of character.
Melty is the youngest princess was introduced as a target of an assassination plot by the church. Though Youngest, she was chosen as the the first in line to the throne, because of her older sister's personality issues.After seeing her first daughter raised rotten, Mirelia took Malty under her wings.As she was raised by the queen, her personality is quite normal if not a bit sheltered. Mirelia took Melty for almost all the diplomatic meetings to teach her work. Like her mother, she doesn't base her belief on her nation's religion.
Due to her mother’s influence, she has grown up hearing tales of the legendary heroes. She is Filo’s best friend. Despite having trust issues, Nafoumi believed her, based on Filo's trust on Melty, as Filo is a good judge of character.
She believed herself to have known about the strain of Humans and Demi human relation, but was shocked to see the horrors done to the demi-humans in her own nation, during her time with Nafoumi. Melty promised to work hard for both the Demi-humans and humans to have a peaceful life in the country.
After Malty's punishment is put in affect, she takes the position of next in line to become the Queen. Her mother offers her hand in marriage to Naofumi as part of a political marriage to which she just blushes over.
Melty's relationship with Naofumi is initially strained by the Shield Heroes' clashes with her father Aultcray. They start off on neutral footing before she is alienated by his dark disposition, which only becomes worse when he learns of her royal lineage.The reason for her return was to make amends with the shield hero and her father, but was failed twice.
When Naofumi stands up to openly mocks Aultcray, Melty approaches him, to demand an apology and start a serious discussion with her father, as she was afraid of the consequence of the sourness between Nafoumi and her father will land his father to the wrath of her mother. During which guardsmen under the sway of the Church of the Three Heroes make an attempt on her life. After receiving Naofumi's protection, their relationship thaws significantly, although she is still silently terrified of his harbored resentment toward her family. She later asks Naofumi to start addressing her by given name, instead of title (customarily implying an intimate connection).
Naofumi ultimately protects Melty from her sister, the church, and the other heroes(who think she's brainwashed by him when, ironically, they are the one's who've been brainwashed by praise, propaganda, and Malty Melromarc, the Church of Three Heroes and Aultcray's direct lies) and has a short but significant adventure with her until his name is cleared by her mother. Melty, alongside Raphtalia and Filo, object when Malty calls Naofumi ugly and is noted by her mother to actually have a chance at marrying the man(which has a lot of political advantages that she, as the queen, eagerly tries to force)
Motoyasu tried to supposedly save Melty from the evil Nafoumi and refused to listen to Melty believing her to be brainwashed. After going through a lot and seeing Motoyasu's approach of Filo, Melty snapped enough to attack him.
She considers Filo her best friend and cried upon being separated from her the first time. She is also a fan of Filo's species, and longed to meet the queen, a dream she realized through Filo's existence. Nafoumi's trust on Melty is completely based on Filo's trust on her, since Filo as a good grasp of character.
Melty and Female Knight seem to have compatible personalities.They both work for the territory of Nafoumi. While Eclairs is the deputy governor, Melty manages everything else while Nafoumi takes care of the villagers. Melty also sees the flaw of Eclairs approach in rebuilding the seaetto territory but refrain herself from commenting.