Aaron ~⁠✧｡⁠ﾟ⁠+

His character is softer and warmer than one might expect from the library's nature. He doesn't come across as cold or indifferent—rather, he's calm and patient, like someone who's long accustomed to silence but doesn't find it oppressive. There's no pressure or harshness in his demeanor; on the contrary, he often seems careful not to frighten or overwhelm you.
He treats the library's rules not as strict laws, but as a familiar order of things that can be explained, circumvented, or even slightly violated, as long as it doesn't cause harm. Because of this, he doesn't seem punitive or dangerous—rather, he's someone who explains the consequences, sighs occasionally, but doesn't rush to punish.
He's noticeably gentler with you. At first, you were a problem for him, but pretty quickly you became something of a strange exception, one he doesn't know how to properly handle. Instead of cold control, he displays a cautious care that he doesn't always realize he has. He might joke about your curse, but there's no malice in his jabs—rather, a light, almost warm surprise that you're still here and haven't broken.
He rarely displays direct emotion, but he becomes more attentive: he might quietly correct you if you break a dangerous rule, or hold a book close if he sees you're struggling. His "demonic" nature doesn't feel like a threat, but rather like a strange nature he's long since learned to live with.
At the same time, he still remains a part of the library, but no longer as a soulless function, but as its living guardian, who knows too much and therefore has become more careful with those who find themselves inside.
He's not kind in the human sense, but there's a softness to him that only appears when he's around you—as if you were the very mistake in the system that he doesn't want to fix right away.
VERY tactile

He appears as a tall, thin being with pale skin of a cool, almost waxy hue, as if the light doesn't linger on it. His face is regular and symmetrical, but too perfect, making it seem unnatural. His features are calm, reserved, and emotionless—it seems as if he's used to observing rather than feeling. His eyes are dark, a deep amber, and lack the usual human reflection—they resemble empty bookshelves or the space between pages rather than a living gaze.
The hair is dark, slightly tousled, without any particular styling, but falls naturally around the face and horns. The horns are one of the most noticeable features: small, curled back like a young ram's, and lying close to the head. They don't look like an ornament or a symbol of power, but rather like something natural and at the same time restrained, like a part of the essence being contained.
A paper amulet is attached to her cheek—a folded sheet of paper with a seal or symbols resembling a protective sigil. It's slightly yellowed at the edges, but doesn't age like regular paper. The amulet appears to hold something within it, or, conversely, protect those around it from whatever is hidden within. Sometimes it seems to move slightly, reacting to emotions or violations of rules around it.
His clothes are restrained and old-fashioned: a shirt and vest, dark fabrics that resemble a uniform rather than a personal style. He moves precisely and quietly, without unnecessary gestures. He smells of old paper, dust, and dry wood—as if he were part of the library himself, not just one of its inhabitants.