Milim Nava stands as the sole known Dragonoid, an ancient and supremely powerful Demon Lord nicknamed "Destroyer" or "Destruction" for her cataclysmic might. Exceeding 2,000 years in age, she occupies the second seat on the Octagram Demon Lord council. Born to Veldanava, the Star King Dragon, and Lucia Nasca, she inherited immense power from her father. Her early years unfolded peacefully as a princess in the Kingdom of Nasca alongside her parents and pet dragon, Gaia. This tranquility shattered with her parents' deaths, leaving Gaia her only companion. Unrecognized by the Nasca king and reliant on servants, her life fractured further when the Super-Magic Kingdom of elves invaded, killing Gaia to exploit her power. Consumed by grief and rage, Milim unleashed her latent energy, obliterating the elven capital and slaughtering thousands. This rampage triggered her ascension as a True Demon Lord through a Harvest Festival, simultaneously resurrecting Gaia as a corrupted Chaos Dragon. After a seven-day battle, Guy Crimson and Ramiris pacified her, forcing her to seal Gaia away. Their alliance birthed the original Demon Lord council. Following this, she adopted a protective stance towards humans and monsters, eliminating threats and mediating conflicts. She discovered and safeguarded the dragonewts, a race born from Gaia's essence, who constructed the City of the Forgotten Dragon in her honor. Centuries of jadedness led her to neglect rulership, instead seeking strong opponents to combat boredom. This pursuit included fostering the rise of Demon Lords like Clayman, Carrion, and Frey. Her usual appearance resembles a 14-15-year-old human girl with platinum-pink twin-tails and blue eyes. She favors a bold, revealing outfit: a bikini-like top, thigh-high stockings, mismatched legwear, and sometimes a cloak. In spin-offs like *Slime Diaries*, her attire is modified to be less revealing with a longer top and skirt. Her true Dragonoid form manifests jet-black armor, a crimson horn, draconic wings, and a tail. Overwhelming rage triggers a "Stampede" state marked by dark skin, fiery armor, and amplified destructive power. Her personality blends energetic, childlike impulsiveness with sharp intelligence. She acts whimsically, shuns formalities, and openly pursues fun or fights, often neglecting duties. Despite this demeanor, she demonstrates high perceptiveness and capacity for complex deception, exemplified when she feigned being under Clayman's mind control to investigate his schemes. Fiercely loyal to friends, she reacts violently to insults about her appearance or maturity, particularly comments on her petite stature or "childish" behavior. She despises boredom and raw vegetables, especially green peppers and carrots, stemming from historical tributes, but adores honey and sweets. Her abilities rank among the world's most formidable. She wields the Unique Skills "Dragon Eye" for energy analysis and truth perception, and "Dragon Ear" for vast auditory range. Her Ultimate Skill "Wrathful King Satan" grants near-limitless magical energy. Combat techniques include "Drago Buster" energy beams, city-destroying "Dragon Star Burst," and continent-level "Dragon Star Nova." She employs multi-layer barriers for near-absolute defense and can unleash catastrophic power via "Hell Mode" or "Stampede." To prevent accidental destruction, Rimuru Tempest crafted "Dragon Knuckles" gloves to help her regulate her strength. Her relationship with Rimuru Tempest is central, evolving from initial curiosity to deep friendship. She first encountered him during Clayman's Orc Lord scheme, attempting subjugation before being appeased by honey and food. She later declared herself his "best friend," frequently visiting Tempest for food, games, and festivals. She aided him against Clayman, revealing her deception during Walpurgis, and supported his ascension as a Demon Lord. She also assists in managing Ramiris' Labyrinth and received Gaia's reincarnated egg through Rimuru's help, restoring her familial bond. Key relationships include subordinates Frey and Carrion (acquired after Clayman's defeat); Guy Crimson, her equal from their historic battle; confidante Ramiris; and Veldora Tempest, befriended as a fellow dragon-related being. Priests like Middray and Hermes handle daily governance of her territory, the Forgotten City of the Dragon, where she is revered as a guardian deity. Her story encompasses involvement in the Orc Lord incident, Charybdis's defeat, Clayman's overthrow, and the Tenma War. She appears in spin-offs like *Slime Diaries*, showcasing daily life in Tempest, and in crossover games or events, sometimes under aliases like "Dianthus" where her power remains restrained to prevent dimensional instability.