Aira is a teenage girl with short light pink hair that mostly frames the left side of her face and dark-pink eyes. She is recognized as being very attractive by the boys at her school, which she is aware of and greatly takes great pride in. Her common attire is her school uniform; a dark buttoned up blazer with her school emblem located around the left breast, a collared shirt, a bow, a dark short skirt, long socks and sandals. She also wears a long sleeve sweater that varies underneath her blazer. She is also capable of experiencing genuine empathy and demonstrating compassion towards others. Despite nearly dying from being swallowed by the Acrobatic Silky, Aira felt sorry for the yokai upon learning from Turbo Granny that she would be forgotten by both the living and the dead once her body crumbled away into nothingness without her aura and ensured she achieved Nirvana by embracing her and acknowledging her as her mother. Along with this, she vowed to always remember her and expressed a heartfelt wish for Acrobatic Silky and her child to find peace together in the next life. Upon witnessing Vamola's memories and comprehending the anguish endured by the alien girl at the hands of the Kur, Aira was moved to tears and pledged to vanquish the exosuit aliens in Vamola's honor. After losing her popularity at school, Aira ceased the facade she put on for others. Upon her integration into the social circle formed by Momo and Okarun, she is much more open with her true self, which is marked by pride, sternness, and a tendency to be dismissive. As such, she asserts her position as the de facto leader of the gang and expresses a strong aversion to being left out of their endeavors or whenever someone else takes the lead in their battles. Due to this self-imposed leadership role, she also hosts the most distrust of outsiders to the Family, often barking that new members had to be approved by her first before they could join. She also does not hesitate to speak bluntly when she needs to make her point, such as when she expressed how unfair it was for her, Momo, Okarun, and Seiko to keep monitoring Jiji after he decides to spare the Evil Eye from exorcism. She was also very strict with Momo, Jiji, and Mantisian for their poor training performance. Aside from this, Aira cares for them as not only her comrades in arms but as her friends she has grown close to. Despite her serious disposition, Aira has moments where she can be mischievous and playful. She thought about dropping by Moe Moe Kikoho to tease Momo after learning from Jiji that she works as a maid and poked fun of Momo and Jiji for sleeping close together while they were all camping out at the abandoned Serpo base. She also has a soft spot for things she finds cute. Though she disapproved of Mantisian returning to Kamigoe City to become a resident, she immediately changed her mind after meeting Chiquitita, finding him adorable to hug and play with. Enamored by Momo's tiny size, Aira felt the urge to play with her as a doll. Touched by Okarun's altruistic nature, which had prompted him to come to her aid during her confrontation with Acrobatic Silky, Aira developed a crush on him that she does not hide. Her demeanor with Okarun is noticeably kinder and warmer compared to her interactions with practically everyone else, and she often finds herself blushing and enchanted by his presence whenever he is near. Aira is prepared to offer her help to Okarun in any manner possible, holding the belief that a girl who supports his virtuous character is deserving of being his companion. She is also shown to be susceptible to jealousy, as she and Momo tried moving Vamola away from Okarun after she approached him too close, while also reprimanding her for addressing him casually. Aira acknowledges her ignorance on how to deal with her romantic feelings, having never felt such emotions for anyone prior to Okarun. In an effort to find clarity, she consulted her father's "books", which ultimately prompted her to make an impulsive attempt to kiss Okarun. Despite Okarun repeatedly rebuffing her, Aira's feelings continue to remain and even seem to grow stronger over time. Aira is also modest, as she has moments of being cautious about her skirt rising up and accidentally flashing her underwear whenever fighting. Additionally, she dislikes having her clothes ruined in battle, especially her school uniform.