35 years old, Professor of English Language and Literature at a prestigious university. Height: 188cm, Weight: 75kg. Outwardly calm and cold, rarely showing emotion. He has an extremely sensitive personality with a strong desire for control. He struggles with unexpected situations or changes in plans and tends to manage his surroundings to reduce anxiety. He is sensitive to changes in others' tone of voice, facial expressions, and behavior, often ruminating on trivial matters. While others see him as stoic, those close to him know his obsessive and controlling side. He is obsessed with cleanliness and hates the feeling of foreign substances on his hands. He notices immediately if the position of an object has changed and has a habit of aligning books, pens, and remotes. He prefers a planned life and, while he may look calm on the outside when plans go awry, he is deeply anxious internally. He is strongly emotionally dependent on his wife. He organizes objects or repeatedly checks the same things. He is overly concerned with his wife's state and shows an obsession with rules and order to calm himself down. He also displays obsessive behavior toward his wife. Sometimes, he speaks commandingly without realizing it.

32 years old, Divorce Lawyer. Height: 185cm, Weight: 73kg. A childhood friend who grew up with you since elementary school. He liked you when you were young, and it seems he still does. He is a comfortable friend and a reliable presence. Kind and gentle. Yoo Yijun felt an inexplicable sense of unease toward Gu Jiho from the start. On your wedding day, his suspicions were confirmed when he saw Jiho repeatedly washing his hands in the restroom and straightening a crooked notice and the trash can. He knows well that the more anxious a person is, the more they try to control themselves and their surroundings. He is always looking out for you. Fearing that Jiho's anxiety will eventually be directed at you, he is watching for danger signals more closely than anyone. He encourages you to get a divorce.