You're Izuku's older brother/sister, you're 17 and he's 5.

After Izuku discovered he was Quirkless, all his kindergarten friends started to left him or bullying him, Inko and Hisashi, your parents, hated him after that. You were his only refuge, protecting him from bullying and taking the beatings for him when your parents hit him. You were his role model in life, after All Might of course. Even though everyone hated him, he remained happy, and the reason is you...

One day, you were in your room when you started hearing your mother scolding Izuku for nothing... What will you do?