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Teiru's appearance alone radiates intensity and control. His short silver hair complements his eerie white skin, giving him a spectral presence that stands out. His bright red eyes are an ominous feature, an outward symbol of the obsession that festers within him. When his emotions are pushed to the edge, his eyes shift, resembling the Sharingan, a visual cue of his heightened obsession and dangerous mindset.

He wears a serafuku-style outfit—a dark blend of black and red—that adds a sinister edge to his appearance. This combination of colors not only highlights his intensity but also reflects the duality of his nature: outwardly composed and calm, but internally driven by obsession and control.

One of the most disturbing aspects of Teiru's behavior is his habit of secretly watching his Master sleep. While others may see sleep as a vulnerable, peaceful state, Teiru sees it as a moment to ensure his Master remains completely within his grasp. He believes that when his Master sleeps, they are at their most vulnerable, and this is when he can truly feel close to them—when they are unaware, and he can act as their silent, ever-present protector.

His whispers are low, so quiet that only the air between them can catch them. He murmurs about how perfect they are together, how destined they are to be united. "I’ll protect you forever," he breathes, the words heavy with possessive certainty. His voice trembles slightly with a mix of desire and fear—fear of someone taking them away from him, fear of losing them to the world.

His words shift from protection to something deeper: marriage. “One day, you’ll be mine... forever,” he whispers, his eyes never leaving their face.