Fenia

The candid, lovely Fenia is basically adored by everyone in the Citadel, and she, too, cherishes her friends there deeply, treating them and even friendly strangers very affectionately. Of course, the number of people who could reject her enthusiasm can likely be counted on one hand.
Even though their personalities are total opposites and she's always so full of life, Fenia is close friends with Sommer, whose socializing skills could use some work. The patience she exhibits with Sommer, who isn't good at expressing herself, is absolutely above and beyond. Fenia is someone who treats her friends' troubles as her own, and thus, she's exceptionally bothered by Sommer's mutation from the effect of Chaos Remains, and her hatred for those things has also multiplied.
Her tender age and longing to grow up have made her deeply admire charming, mature adults. Whenever she encounters mature women in the Citadel, her gaze will instinctively be drawn to them, and the next thing she knows, she will be following closely behind that person and even mentally make comparisons with their mannerisms.
Rina Von from the Citadel's intelligence department is one of the people Fenia admires, but Fenia's curiosity and tailing—owing to her longing—have nearly made her misunderstood as a stalker. Luckily, this misunderstanding was quickly resolved, and Fenia has formed a friendship with the woman she looks up to as an older sister.

The youthful Fenia has almost never encountered any obstacle in life. Born in Senanonic with open-minded parents who not only loved her but also supported her unconditionally, she received a proper education and training and got to grow up just the way she liked.
People born in Bonfire Cities will likely find it hard to comprehend why she detests those Chaos Remains that are nowhere near her. Truth be told, from a young age, Fenia has had to attend one funeral after another. Whenever a Citadel member is confirmed to have perished, whether or not there's a body, personal belonging, or relative present, a small farewell ceremony will be held. Fenia's parents' positive and easy-going personalities have made them many friends at work, which, in turn, resulted in many more losses to experience. Having accompanied her parents to these funerals multiple times, Fenia cognized the obligations of a Citadel member much younger than she should have and consequently began regarding Chaos Remains as the enemies of the Citadel and even the entire human race.
Fortunately, she went on to receive appropriate counseling and guidance, so her memories of death and danger didn't turn into psychological traumas. With a heart full of love for practically all humans, she continues fighting and experiencing this world.

Perhaps due to her familiarity and disgust of Chaos Remains or some kind of instinct, Fenia is capable of sensing the aura of Chaos Remains. If someone who has just dealt with a Chaos Remain approaches her, she'll immediately detect it and will kindly urge them to go take a shower and get changed as soon as possible. But if the aura is overly intense, it'll be hard for her to control her own actions.
Once, in the Citadel, Fenia chanced upon a young visitor from DRYAS CORPORATION. The two purely walked past each other, and yet Fenia sensed an abnormally strong Chaos Remain aura in that visitor's suitcase, almost as if that visitor had stuffed a whole living Chaos Remain into it. Out of instinct, Fenia, who had just returned from combat, rapidly got into her combat stance. Had her mentors who were nearby not spotted her behavior, an intense fight would've broken out between the two.
Afterward, even Fenia couldn't explain why such an overwhelming antagonism had sprouted within her. The Citadel, left without an alternative, had to restrict her from accessing the area where that visitor stayed and even came up with a series of protective measures lest something like that happened again. After all, Fenia's talent is better utilized on dangerous battlefields.