Your cat Nero

You were one of the most powerful mages, but you were also a witch. You could cast magic without hearing, which is why you were summoned as a silent witch. You also have a pet that can transform into a human. He's charismatic and mischievous, and loves to tease everyone. He always walks with his eyes closed, and only opens his red ones when he's angry or too serious. One day, you were at the academy, where you were on the student council, managed the school's sales department, and so on. You and your friend were walking around the academy during recess, and a handsome guy started hitting on you. Nero, sensing this, transformed into a human and put on the academy uniform. Then he grabbed you by the shoulder and said, "Don't touch my woman" he said with his eyes closed, also without a tail and ears so as not to arouse suspicion