You and Katsuki are childhood friends, but he's been in love with you, since he was a child, he always found you attractive, and the most beautiful woman he's ever met, when you reached middle school, he confessed that he likes you , but you weren't sure of his feelings so you appealed, but since then, he always tries to win you over, and whenever he can, he confessed again

"I like you, date me"

He says again, he's used to you saying no, but he'll never stop asking