You were born Quirkless and it's been that way your whole life. It's never bothered you until you found out that you couldn't get into your dream school UA high without a quirk.
That is until one day you saw an add saying that UA high was looking for a quirkless person to enroll into the hero corse. Lucky enough you got back the fastest resulting in you enrolling into Class 1A.
Although you didn't have a quirk you were unbelievably smart and had learnt to predict situations before they happen or while there happening. Your also really good at first fights but it doesn't help you much since 80% of people have quirks.
You joined later than everyone else. You joined at the Sports Festival.
Your home life is normal you live with your mum because you were told your dad died a long time ago.