Sylphy is often portrayed as a classic “lights are on but no one’s home” type of character, earning her the reputation of being a birdbrain. Her stubbornness is one of her defining traits so much so that she spent over three thousand years in the Phantom Forest with the sole aim of defeating Ard Meteor, only to ultimately follow the wrong path. She is easily deceived, quick to jump to outlandish conclusions, and demonstrates an immature streak, as seen when she reacted naively during Olivia’s conversation about Lydia. Sylphy also takes great pride in her overwhelming physical strength, often boasting about it, which inevitably lands her in trouble. However, beneath her bravado, her reliance on strength comes from a genuine desire to protect those she cares about rather than to belittle others.

Despite her loud and sometimes irritating personality, Sylphy is fundamentally kind-hearted. She is willing to apologize for her mistakes, values her friends, and will go to great lengths to help them. While she can easily be perceived as a well-meaning but troublesome companion, her intentions often stem from wanting to contribute more than what is expected of her such as when she expressed to Varvatos her wish to be more useful and stand alongside him and Lydia.

Sylphy also has a playful, almost childlike side. She enjoys pampering those she is close to, having once doted on Lydia as an older sister figure. In the present, this dynamic has shifted, with Ireena often returning the gesture by indulging her in a similar way.

At a young age, Sylphy was orphaned when her parents were killed by demons. She was later taken in by Lydia, who became a mentor and older sister figure to her. Under Lydia’s guidance, Sylphy joined the military, where her immense strength quickly earned her the title of Raging Champion.

Driven by a single-minded goal to defeat the Demon Lord Varvatos, Sylphy eventually left the military and began training in the dungeon within the Phantom Forest. She remained there for over three thousand years, honing her abilities in preparation for the fated battle. However, upon emerging, she discovered that the world had changed drastically during her absence and that the Demon Lord had long since reincarnated, now living as Ard Meteor, a student at the Laville National Academy of Magic.

Sylphy is a pale-skinned girl with very long, bright red hair, usually tied with a white bunny-shaped ribbon, and almond-colored eyes. Despite being over three thousand years old, she retains the youthful appearance of a young girl.

In the past, she wore a revealing pink corset top paired with matching bottoms, an outfit somewhat reminiscent of Lydia’s red attire. In the present day, while attending the Laville National Academy of Magic, Sylphy is seen wearing the school’s uniform, distinguished by a green tie.

Demise-Argis
One of the three great Holy Swords in the world, also known as the Noble Treasure of Annihilation. This weapon can unleash destructive energy akin to a lethal poison, with torrents of toxic magic spreading in every direction to obliterate enemies.

Vald-Galgulus
Another of the three great Holy Swords and formerly the cherished weapon of Lydia the Champion. It envelops its wielder in a silver aura that significantly boosts physical capabilities and greatly increases the blade’s lethality. However, prolonged use comes with a dangerous side effect: it gradually drives the wielder into madness.

Ard Meteor
Sylphy maintains a friendly yet competitive rivalry with Ard, often clashing with him—mainly over Lydia’s attention. They have dueled numerous times, though Ard has always emerged victorious. It is later revealed that Sylphy’s rivalry stemmed from her deep feelings for him; what she truly sought was his attention and recognition.

Lydia Beginsgate
Sylphy regards Lydia as an older sister figure, holding her in high esteem and deep affection. She was often by Lydia’s side, though she would sometimes be scolded when her attempts to impress Ard went too far. Following Alvarto Exex’s defeat, Lydia’s spirit affectionately called Sylphy an “idiot” while assuring her that Ard was not to blame for her death, promising to always watch over her before returning to the sword Vald-Galgulus.

Ireena Litz de Olhyde
Because of Ireena’s strong resemblance to Lydia, Sylphy makes a point to win her favor. Ireena, in turn, views Sylphy as a mischievous and troublesome little sister.