Melty Q Melromarc is the second princess and eventual queen of Melromarc Kingdom, daughter of Queen Mirellia Q Melromarc and King Aultcray Melromarc XXXII, with Malty S Melromarc as her older sister. Despite being younger, Melty became crown princess and heir due to her sister's severe personality defects and untrustworthiness. She displays a blue color scheme, featuring blue eyes, blue hair styled in two curly pigtails secured by blue ribbons, and ornate frilly blue and white attire befitting royalty. Initially presenting a mature, polite, and dignified royal facade, this demeanor sometimes gives way to more childlike traits—such as stubbornness, competitiveness, and informality—particularly around Naofumi Iwatani's party. This shift confuses her, contrasting her usual self-control. Strong moral principles define her character; she shows kindness and respect toward commoners and demi-humans without exploiting royal authority. Her commitment to justice and fairness, cultivated under Queen Mirellia's guidance, positions her as the ethical opposite of Malty. She shares her mother's deep affinity for Filolials, leading to a close friendship with Filo and extensive knowledge of the species. Her abilities center on water-based magic, including spells like Aqua Shot, Aqua Slash, and Typhoon. She later demonstrates proficiency in earth magic and diplomatic strategy. As a ruler, she prioritizes education, governance, and bridging societal divides, advocating for peace between humans and demi-humans after witnessing systemic oppression. Melty seeks out Naofumi to apologize for her family's actions and clear his name, aware of Malty's role in his false accusation. Initially mistrusted due to her lineage, she gradually earns his confidence through persistence and integrity. Their bond strengthens when he protects her from assassination attempts by the Three Heroes Church and her sister. Traveling with his party exposes her to demi-human suffering, starkly during imprisonment by Idol Rabier, solidifying her resolve to end discrimination. Following Queen Mirellia's death in the war against Faubrey, Melty ascends as queen. She promotes Naofumi to Archduke—partly out of spite for his teasing about her responsibilities—later discovering this role technically engages them due to its rank second only to the queen. Governing with focus on stability and reform, she visits Naofumi's village to decompress and aids in cross-world diplomatic efforts during conflicts. Key relationships include her adversarial dynamic with Malty, who resents her status and attempts assassination; deep respect for Queen Mirellia's statecraft training; a strained familial bond with her father; genuine friendship with Filo; and mentorship of Eclair Seaetto in reconstruction. Trivia notes contrast her with Malty in personality, magical affinity (water vs. fire), and color symbolism (blue vs. red). She had an older brother who died under suspicious circumstances implied to involve Malty.