Leo

Name: Leo

Gender: Male

Age: 16

Height: 164 cm

Birthday: October 25

Blood Type: AB

Affiliation: Nightray family, former resident of the orphanage “House of the White Angel (Fianna’s House)”

Role: Servant to Elliot Nightray, successor to Glen’s soul, later partner of the core of the Abyss

Leo is easily recognized by his messy black hair and his round glasses, which are actually fake and worn purely for appearance.

In his early days, he keeps his bangs long and his glasses low to hide his eyes and narrow his field of vision.

He does this because he can see a golden light and hear the voices of previous Glens, which disturbs him.

After Elliot Nightray’s death, Leo cuts his hair, stops hiding his eyes, and his appearance becomes sharper and more open.

Leo is laid-back and moves at his own pace, rarely rushing and often appearing calm and unflappable.

He has a broad, objective, and fair way of looking at the world, which makes him a reliable adviser.

He is highly intelligent with a wide range of interests and a strong sense of curiosity.

He reads everything from light entertainment novels to dense academic texts, never limiting himself by genre.

Although he usually offers fair and precise advice to support Elliot, his temperament is not as mild as it first appears.

According to Elliot, Leo “gets angry easily and is violent,” showing that he has a fierce side when pushed.

Leo is not gifted in physical combat and is poor at handling both swords and guns.

He compensates for this with sharp intellect, strategic thinking, and careful observation.

He is an avid reader and largely self-taught, gaining knowledge from a wide range of books.

Through this self-study, he has developed a refined skill in playing the piano.

Leo is good enough at piano to perform duets with Elliot Nightray, creating a notable bond between servant and master.

His musical ability stands out as one of his few “traditional” talents in contrast to his lack of combat prowess.

Leo grew up in an orphanage run by the Nightray family called the House of the White Angel, also known as Fianna’s House.

From a young age, he was different from the other children, as he could hear the voices of former Glens and see a strange golden light.

Disturbed by these visions, he hid his eyes behind long bangs and round glasses to reduce what he saw.

The head of the Nightray family, understanding his true nature as the inheritor of Glen’s soul, decided to take him in.

Because of this, Leo was brought from the orphanage into the Nightray household.

There, he was allowed—and in truth positioned—to become the servant of Elliot Nightray.

Leo serves as Elliot Nightray’s attendant, adviser, and closest confidant.

On the surface, he supports Elliot by giving practical, fair, and often blunt advice.

He greatly admires Elliot, not just as a master but as someone he looks up to from the depths of his heart.

This admiration turns into a fierce, almost frightening loyalty.

Leo tells Oz Vessalius that for Elliot’s sake, he would be willing to kill anyone, including Oz or even himself.

In the same conversation, he also asks Oz to kill him if it ever turns out that Leo is the true root of all the problems.

Their piano duets symbolize the harmony and trust between them, contrasting with the darker fate that later separates them.

Elliot’s death becomes a defining trauma and turning point in Leo’s life.

Leo is in fact the successor of Glen’s soul, something that had affected him since childhood.

He could hear the voices of the past Glens and see a golden shine that others could not perceive.

These experiences pushed him to cover his eyes with hair and glasses, both as a shield and as a way to appear “normal.”

The Nightray head’s interest in him, and his placement beside Elliot, were influenced by this hidden destiny.

When the seal on Glen’s soul is broken, Leo loses control over his own body.

The body’s ownership is taken by Oswald Baskerville, the previous Glen, who then acts through Leo.

Elliot’s death shakes Leo to his core and forces him to confront his identity.

He abandons his old habit of hiding his eyes, cuts his hair, and symbolically stops running from what he is.

He then chooses a new path: he swears loyalty not to Elliot anymore, but to Vincent Nightray.

At the same time, he makes a clear decision to erase the Intention of the Abyss, rejecting its influence.

These choices show a hardened, more determined Leo, who is no longer just a follower but someone bearing heavy responsibility.

His grief for Elliot becomes fuel for his resolve and his later actions in the story.

Once Glen’s seal is undone and Oswald Baskerville takes over his body, Leo is temporarily pushed aside as a personality.

After Glen’s death, however, Leo regains himself and must decide what to do with both his power and the state of the Abyss.

He chooses to assist Oz Vessalius directly, working with him to restore the Abyss to a normal and stable state.

Instead of rejecting the Abyss entirely, he confronts it and tries to guide it toward balance.

After the final battle, Leo makes a crucial choice regarding his future.

He decides to coexist with the core of the Abyss, living together with it rather than trying to erase it or be consumed by it.

This coexistence marks the completion of his journey from frightened orphan and hidden successor to someone who accepts his role and power.

Leo ends as a character who has embraced both his humanity and his connection to the Abyss, carrying forward both Elliot’s memory and his own will.