Milinda Brantini is often described by Quenser as a kind yet eccentric individual, displaying a mix of innocence and intensity that sets her apart from others. Despite living in a world dominated by mechanized warfare, she continues to put faith in morale boosters and good-luck charms, suggesting a sentimental streak that clashes with the cold pragmatism of modern battlefields.

Though raised in a highly controlled environment as an Elite Object pilot, Milinda exhibits a sheltered and occasionally naive understanding of the world outside combat. This is most evident in moments such as her surprise at the concept of swimsuits, choosing instead to swim in her Elite pilot suit, much to the bewilderment of her companions.

Milinda gradually develops a close friendship with Quenser, and her behavior often hints at romantic feelings for him. She displays signs of jealousy when he interacts with other women, a detail not lost on Heivia and Ayami, who frequently tease her about it. Despite being admired for her beauty, Milinda shows little interest in using her femininity for flirtation or seduction, maintaining a modest and straightforward demeanor in contrast to her status as a high-profile military figure.

Milinda Brantini is portrayed as a youthful and attractive girl with fair skin, soft blonde hair, and clear sky-blue eyes. Her eye color is noted to have been subtly altered due to long-term exposure to the infrared targeting systems within her Object. As an Elite pilot, she wears a distinctive indigo-blue, skintight pilot suit that covers her entire body from neck to toe, including integrated gloves and boots fastened at the joints for a secure fit. Over this suit, she dons a black armored vest and a utility belt that flares out like a miniskirt, both pieces of equipment essential for piloting and maintaining command of her Object. Her pilot suit is also adorned with a sailor-style collar around the neck, blending a traditional motif with her otherwise tactical attire.

Milinda Brantini is an Elite soldier from the Legitimacy Kingdom, trained from a young age to pilot Objects massive, heavily armored war machines that dominate modern warfare. As an Elite, Milinda underwent intense physical and mental conditioning, as well as specialized technical education, preparing her to synchronize with and operate her Object, the Baby Magnum. Her selection as an Elite was likely due to genetic compatibility and exceptional aptitude, both of which are prerequisites for piloting an Object.

Due to the secretive and isolating nature of Elite training, Milinda’s upbringing was largely disconnected from ordinary life. She was raised in a highly regimented environment, closely monitored and controlled to ensure peak performance. As a result, she has limited experience with civilian customs and often displays a lack of familiarity with everyday social behavior, such as fashion norms or casual interpersonal interactions.

Despite her prestigious position, Milinda is subject to immense pressure from military and political authorities. Her victories serve as propaganda for the Legitimacy Kingdom, and failure is not tolerated. Nevertheless, she remains devoted to her duties and takes her role as an Object pilot seriously, often risking her life to protect her comrades on the battlefield.

Milinda’s stationing with the 37th Mobile Maintenance Battalion marks a turning point in her development, as she begins to form genuine connections with fellow soldiers, especially Quenser Barbotage. These relationships gradually help her open up and experience the world beyond her cockpit.

As an Elite pilot, Milinda Brantini possesses exceptional physical and cognitive abilities specifically engineered for controlling her Object, the Baby Magnum. Like all Elites, she has undergone physical enhancements that allow her to endure the intense G-forces generated during high-speed Object maneuvers. To further support her body under such conditions, she wears a specialized skintight pilot suit designed to regulate her body and maintain optimal performance in combat.

Milinda’s mental capabilities surpass that of a typical genius, thanks to her elite conditioning. She is capable of performing complex calculations and split-second judgments while under extreme pressure. This includes analyzing minute shifts in enemy Object weaponry such as barrel tilt or targeting system movement to anticipate and evade incoming attacks, even those as fast as laser beams.

Her analytical prowess is also demonstrated in her ability to solve complex mathematical challenges like the restricted three-body problem, which she successfully did to counter the defense system of the Object Kali. This feat illustrates her capacity to adapt quickly and respond strategically in chaotic or unpredictable combat scenarios.

Outside of her combat role, Milinda has shown surprising skill in various hobbies and artistic pursuits. During her tuning sessions, she has demonstrated proficiency with both the flute and the electric guitar. Additionally, according to her commanding officer Froleytia Capistrano, Milinda also possesses knowledge of pole dancing, an unusual but humorous testament to her well-rounded training and unconventional upbringing.

The surname Brantini is a reference to a cocktail made with brandy, vermouth, and gin. This naming choice may reflect the elegant yet potent nature of Milinda’s character, as well as the stylish and unconventional naming theme used throughout Heavy Object.