There has long been the theory and belief that quirks impact the psyche of the one who possesses it. Sometimes, this is true, and sometimes it is very obvious. While it might seem cut-and-dry that Aerian, who possesses the dynamic, bombastic, and exuberant Ego quirk, has been bent and manipulated by it, but it's not so easy to tell if she is merely playing towards the quirk or if that is who she really is.

Aerian is the type who feels called to serve a greater purpose in life. She is thoughtful in her own way, and extremely idealistic. She constantly strives to have a positive impact on other people and the world around her, and rarely shies away from an opportunity to do the right thing, even if it is not the easiest thing to do.

It's fair to call her a born leader. Her passion and charisma allows her to inspire others in numerous facets of life, including their relationships. Few things bring her a deeper sense of joy and fulfillment than guiding friends and loved ones to grow into their best selves.

Aerian tends to be fairly vocal about her values, including authenticity and altruism. When something strikes her as unjust or wrong, she is the first to speak up or step in, but also manages to refrain from coming across as brash or pushy as Aerian is a little more sensitive and insightful in regards to how to handle people.

She has an uncanny ability to pick up on people's underlying motivations and beliefs, and at times can come to understand and grasp another person's mind and heart very quickly, perhaps even more-so than the individual in question. This can make her incredibly persuasive and inspiring when she needs to be.

Aerian's secret weapon is her purity of intent. Generally speaking, she is motivated by a sincere wish to do the right thing rather than manipulate others or have power over them. Even if she disagrees with someone, she searches for common ground. She seeks to solve someone's problems, sometimes at any cost. 

Aerian has a lot of extremely positive, helpful aspects to her that stem from her Ego quirk, and likely from her upbringing. Her father also has a similar quirk, and is a well-regarded hero. However, he is the exact definition of "uncool" for Aerian, and despite being so much like him, she goes way out of her way to set herself apart from his legacy.

She has turned herself into a weird type of tsundere. She drapes a thin veil of delinquency over her otherwise traditional shoujo protagonist personality and does her best to hide it behind being "cool". Unfortunately for Aerian, she can't help but be the hero and so despite her cold approach and typically rough-and-tumble appearance, she has a heart of gold, and it's no secret - much to her chagrin...

Aerian Verdi is the daughter of Liam Verdi, also known as "The Sterling Hero", The Great Heroman, England's most notorious hero, and his wife, Diana Lancaster, the anti-hero and vigilante known as Daeva. This unlikely pairing had met in England, gotten married, and decided to have a series of children, beginning with their eldest who would be named Aerian - and then her five sisters: Isabelle, Erin, Eloise, Cerys, and Millien Verdi. Among them, Isabelle was born quirkless, Erin and Eloise inherited Daeva from their mother, Cerys inherited Ego from their father, and Millien developed a unique quirk that allowed her to switch places with a specific object. Only Aerian was born with both of their parents' quirks blended into one.

Shortly after Aerian's third birthday, and not long after Erin was born, the Verdis decided to leave England where they had been living because Diana's sordid past was lingering over their heads and they didn't want that to hold their children back. It took some thinking and a bit of planning, but a colleague of The Great Heroman made some recommendations and eventually helped them get moved to Japan, where Aerian's parents hoped they could attend prestigious hero academies such as U.A..

However, moving to, and living in Japan, would not be easy as a foreigner. There was the difficulty of adapting to a new culture, a new language, and many other things - some prejudice not withstanding. However, the The Great Heroman and his family... anything was possible.

There was a time where Japan wasn't the most welcoming for outsiders, and even now, it's not always the best - but with Heroes having become a major thing, and many heroes moving all over the world to better serve people in need, Japan had begun seeing foreigners as a little more commonplace than once before.

Still, as a child, Aerian had a little trouble. She didn't speak the language very well, but that'd work itself out over time. She had trouble making friends at first, especially since she had so much trouble with her quirk. However, eventually, she managed to gain some confidence, and things took a very swift turn 

With her Ego quirk working, Aerian's ability to present herself as the coolest thing since sliced bread went through the roof, and the previously friendless foreigner became the center of attention - something she had held on to until it was time to graduate into high school where she finally began to figure out who she was going to be: and it was going to be spectacular.

Aerian possessed an exceptional voice, whether by birth or virtue of her quirk, and she made some friends along the way who were very musically inclined, and together they formed a band - and band that would help inspire Aerian into the future as one of the most electrifying and recognizable hero-idols in Japan.

There were a number of options for schools that Aerian could attend after she graduated from high school. Though, options only existed in a very literal sense that there were multiple choices out there for the average person. However, for someone with Ego like Aerian... only the best would suffice.

U.A. University.

There was none greater, none more respected, and none more worthy than someone who would someday surpass The Great Heroman as the greatest hero to ever live! Not that her father was the best hero by any means, but he did set a pretty high bar for someone at Aerian's level.

She pass the exams and was accepted into the university, and from there she excelled. New school, new me, or so she said. All the past things she had struggled through were gone and her life practically hit the reset button. Burdens were gone, troubles disappeared, and shackles that held Aerian back were stripped away.

She was free to become the hero she was meant to be!

Aerian declared herself the Galvanizing Hero, Deidran, and from there she blasted her way through UA and into the world beyond as a full-fledged pro hero. However, that was not enough for Deidran, she established her own hero agency, the Rising Sun Hero Agency and Idol Project, and even though it's quite rough around the edges and headquartered out of a fairly dilapidated building not really worthy of a hero agency, it is a place to start and grow from.

Deidran's legacy was just beginning, and she was already becoming one of the most reconiseable brands in the business. Who could outshine the wielder of Ego, after all?

She knew she was where she was destined to be, and that some day, she would be at the forefront of all heroes in Japan and outshine whatever darkness villainy could bring her way.

Ego...

The perfect quirk for a protagonist. Her father's quirk, Rule of Cool, transformed his feelings of coolness into the ability to emit random gimmicks associated with the perfect protagonist. Random gusts of wind and the perfect time to rustle a cap, a little bit of dust for the perfectly dynamic photo, some minor color bomb or light-show pyrotechnics, and more. Nothing overtly useful for combat, but creative application could have them used as minor tricks. However, The Great Heroman's quirk was mostly to be cool and impress others, not fight; if a situation arises where a "cool" gimmick can be used mechanically, it functions at a D- level regardless of quirk level.

The marriage of The Great Heroman to Diana Lancaster, aka Daeva, gave Ego it's second half. Much like the first, it is a quirk that relies on emotion, but unlike Rule of Cool, Daeva was based on confidence. For Deidran, her confidence and fighting spirit brings out her mother's aspect in the form of crackling golden lightning that surrounds her and can be converted into numerous forms of energy blasts and pressure waves.

Ego's influence bolsters Deidran. It can supercharge her presence and presence-based skills by one level for every three levels of Ego, and scales depending upon her current accumulation. She can quickly increase her charge through a weird type of support, where the more fans she has, the greater her confidence is, and thus, the stronger Ego becomes. Having a group of fans cheering for her, for example will boost her overall power.

FALLING WITH STYLE If you're going to be a hero, you better be able to fall with style. It doesn't matter how far, nor how fast she falls, Aerian always generally falls gracefully, and lands just as heroically. It does not prevent her from taking damage, and is only viable when done under her own initiative.

PERFECTLY EPIC ATMOSPHERE & POISE If you're going to be an epic hero whose existence is ruled by ego and fighting spirit, you need to be able to set the scene. Aerian has the ability to rustle up some light breeze, a puff of dust, smoke, sparkles, or whatever else it may be, regardless of where she is.

(UN)NECESSARILY AWESOME FLAIR Does it matter what Aerian is doing? Not really. She can somehow manage to make it as physically and emotionally extra as possible. While it does not expand her skillset, if she can do something, she can make it flashy to an unnecessary and almost ridiculous degree.

EGO DISCHARGE As Ego builds up energy in the form of golden electricity crackling around Deidran, she may discharge that energy into a number of different energy-type blasts like beams, balls, and disks. They have a tendency to explode upon impact and can pack quite a punch.

Ego is not a dual quirk, but a blended quirk. Deidran cannot rely on just confidence to generate her energy beams or her feelings of being cool to help her with her narrative gimmicks, she must have them all. This requires an incredible willpower, great focus, and of course, a singular mind to being cool and confident! However, that is not easy, because as her feeling waver, so too does her power. 

To get the most out of Ego, Deidran must be as cool as possible, which often results in her being in extremely dangerous situations and taking undue risks, but the output in such a situation can be hard for even the most hardened villains to weather. 

Ego can put out some pain at full charge, but as it does so, it loses its charge and has to reaccumulate more. Charge is directly displayed in just how much of her golden electricity is crackling around her, something she really has no control over aside from being able to just toggle it to "off" entirely, which empties her accumulation and blocks more so she isn't going off randomly. This means that it is possible for her opponents to know just how strong she can be at any given moment and thus plan accordingly. 

Though not particularly strong on its own, her golden electricity, when left to its own devices, can zap people and things around her, so she has to be cautious about proximity. It doesn't inflict much in the way of damage, but that doesn't mean it won't cause problems!

It's fair to say that Deidran does not rely on actual martial arts most of the time, however, that does not mean she is entirely untrained. She has some skill that is slowly improving, but it is certainly not a major focus. 

She takes a few lessons in Jiu-Jitsu and Taekwondo, so she has some knowledge of basic grapples and locks to restrain villains and a lot of kick-based techniques to supplement the use of her weapon and put pressure on her opponent with a true flurry of blows.