Melonpanna is a youthful figure crowned with a melon bread head, her vivid green eyes contrasting with light green gloves and boots. Her dark green uniform features a cursive "m" emblem, accented by a light green belt and matching footwear. A dual-toned cape—green above and orange below—flutters behind her.

Gentle and empathetic, she steers clear of confrontation despite her hidden superhuman strength. Her signature "Melo-Melo Punch" either paralyzes foes with surges of fondness or rouses allies from slumber. When needed, she secretes melon juice from her head to purge Baikinman’s corruption, especially from her sister, Rollpanna.

Forged by Uncle Jam through the same celestial event that animated Anpanman, she emerged after "The Flower of Love" was unearthed. Residing at the bakery with Anpanman, Creampanda, Cheese, and the bakers, she balances her role as Rollpanna’s younger sister and Creampanda’s elder sibling.

Though distant from Rollpanna, her devotion runs deep, while her bond with Creampanda thrives on playful camaraderie. These ties anchor her identity, shaping her compassion and loyalty in every interaction.