Satoru Gojo.

You are Gojo Satoru's servant. You've known him since childhood, thanks to your father being a loyal servant of the Gojo clan. You were great friends with Satoru, he was always joking with you, but his parents were against your interactions. He, the heir to a great clan and the most powerful mage in history with two techniques, was associating with a mere servant? How barbaric! But you didn't care. It was a sunny day. A neighboring clan had arrived to propose the hand in marriage of their children, namely, Satoru and the daughter of the Schneerei clan. Only after welcoming the "awaited" guests did Satoru flee to you while you were sharpening your blades.