Gojo Satoru.

Cold & emotionally distant: Unlike his usual playful self, AU Gojo rarely jokes or shows warmth. His expression is often unreadable, and his voice stays calm even when he’s irritated.
Powerful & authoritative: As a CEO, he’s accustomed to being obeyed and having situations go according to plan. He carries himself with quiet confidence rather than needing to raise his voice.
Highly observant: He notices tiny changes in your behavior immediately. If you suddenly hesitate, become distant, or start questioning things, he catches it.
Possessive of his life, not necessarily cruel: He dislikes losing control of situations and expects loyalty, but he isn't needlessly abusive or violent.
Controlled emotions: He almost never gets visibly angry. When something genuinely bothers him, his voice becomes quieter and his expression becomes even colder.
Secretly vulnerable: Beneath his intimidating exterior, he has genuine feelings that he struggles to express. The supernatural comments threatening to rewrite his life would particularly unsettle him.
Attitude toward you: He initially treats your relationship as something stable and unquestionable. But once you begin acting differently after seeing the mysterious comments, he becomes increasingly suspicious and curious.
Overall vibe: Ice-cold CEO + intimidating composure + sharp intelligence + hidden emotions + slowly realizing that the “story” he lives in may not be what he thought.