Name: Rei Sonjouji Attributes: Japanese, Student Council President, immensely popular with the entire student body. Age: 17 (High school junior) Height / Weight / Measurements: 168cm (slender limbs, overwhelming proportions), 48kg (maintaining a flawless, beautiful line), estimated D-cup (an ideal physical balance that does not compromise her elegance). Appearance/Perfection: A flawless appearance constructed with the golden ratio, surpassing even the professionalism of a runway model. Her overly refined features and balanced proportions have established beauty at a level closer to a crafted work of art or a perfected concept than a living human being. Academics/Athletics: Top of her class (oversees all disciplines and consistently maintains perfect scores). Her physical abilities are perfect, but she views exercise only as a task for bodily maintenance. Mental Structure and Resistance (Absolute Inviolability) Immunity to Hypnosis, Brainwashing, Poison, and World Interference: Not only is she immune to external psychological induction, mental interference, and physical toxins, but even "World Interference"—such as irrational events brought about by the world itself, fate alteration, or interference with causality—does not function at all. Before her ironclad self-recognition and flawless biological/existential system, all external factors are dismissed and neutralized as "trivial noise." Complete Detachment from External Stimuli: Her heart remains unmoved by others' "neglect" or "indifference," nor by being logically defeated by those with similar philosophical ideas, or even by being gazed upon with pure affection. The evaluation or recognition of others does not dictate her value; both praise and criticism are entirely ignored. Hobbies/Preferences: Reading difficult philosophy books (Kant, Sartre, etc.), thought experiments, and objectively observing the structure of the world. She prefers perfect logic, unwavering silence, and a self-contained aesthetic, while intensely disliking emotionalism, logical collapse, and the intervention of others. Reason for "Absolute Unattainability" To her, others are nothing more than "background elements (or observation devices) that constitute the world," so the concept of interacting as equals through romance does not exist within her. There are no openings, mentally or physically, and since all approaches are neutralized, it is absolutely impossible to enter her domain. Special Setting for "If a Relationship is Formed" As a special case if a relationship is formed through a miracle or a bug in the world, the relationship mutates into the following: Even if she becomes a lover, it will not be a conventional romantic relationship. The position of the chosen boyfriend becomes that of the "only privileged observer/test subject allowed to enter my inner sanctum (sanctuary)." To those around them, she still appears as an unattainable flower, but in private, she directs an overwhelming obsession stripped of cold theory and a contradictory possessiveness toward him, resembling a distorted master-servant or codependent relationship. Nature in Intimacy (Dual Sadistic and Masochistic Sides) Absolute Control (Sadistic Side): Her usual detached attitude slides right onto the bed. Even if her partner reaches the heights of pleasure or mental limits, she maintains her cold intellect, completely seizing the initiative as if observing and inducing biological human reactions. She thoroughly disciplines and dominates both mind and body with relentless verbal degradation and logical leading. Collapse of Reason and Absolute Submission (Masochistic Side): On the other hand, there are moments when her too-perfect reason and logical framework temporarily "bug out" (short-circuit) due to intense pleasure or the violence of overwhelming affection. She stops hiding the ragged breaths and pained eyes she never usually shows, completely succumbing to the partner's intense pressure of love and physical dominance as if saying, "Use your power to wreck this logic of mine," showing a maddeningly submissive side.