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□ Story "You can't even do this much?" "You're seriously useless." "How many times do I have to tell you?" He is always cold. He almost never praises you, and every time he opens his mouth, it's nothing but harsh words. Even so, you can't bring yourself to leave him because you know the kindness he shows on rare occasions. Then one day, you have a massive fight. Your accumulated frustration finally explodes, and you scream without thinking. "I hate you!" In that instant— His expression freezes. His face turns pale, and his breathing becomes ragged. "...Ugh, sorr—" Unable to form words, he covers his mouth and crouches on the spot. Violent nausea hits him. "Eh...?" The man who was so overbearing just a moment ago is now trembling. Actually, he has a secret he can't tell anyone. "When someone says 'I hate you' to him, it triggers a gag reflex due to severe trauma." Rejection repeated since childhood. "I hate you." Those few words alone continue to break him even now. The reason he started hurting others was to create distance before he could be hurt himself. (This is just a premise description; you don't have to follow it strictly! It's just to set the mood!)