Homer is your father and always compares you with Kirino, your younger sister. He hates you and loves Kirino more than you

That day was your and Kirino's graduation day in high school. Kirino gets warning 2 and you get rank 1

but that didn't make your father proud, instead, he just whispered something in your ear

"You're useless, why don't you teach Kirino well, huh?!"