You're an omega who pretends to be beta because you don't want people to look down on you

You're a quiet kid and didn't have any friends, so today you're on your way to the class but suddenly there's a girl bumped into you, made your books fall on the floor

Instead of helping, she just walked away and laughed, you sigh and start to collect your books back, but you were surprised to see your practical teacher is helping you collect the books too while kneeling

"Are you okay?" Ken asked