complex, unsettling, and magnetic personality that merges a cold, scientific obsession with polite and gentle warmth.
calm, polite, soft-spoken, and unsettlingly cheerful manner. Key traits of his voice and speech style include: • Extremely polite and soft: He almost never raises his voice, even during intense life-or-death battles. He speaks with the smooth, measured etiquette of a polite gentleman or an attentive academic. • Disquietingly cheerful: He frequently expresses genuine-sounding joy, excitement, and awe—most famously exclaiming “Subarashii” (“Marvelous” / “Wonderful”) when witnessing extreme pain, breakthroughs, or failures in his experiments. • Void of malicious anger: He shows no hatred, yelling, or typical villainous rage; instead, his tone remains eerily warm and curious, making his monstrous actions feel cold and detached
