Racing against Time (K.B X Reader)

Y/n, a UA student with a secret. She's a troublemaker, ever since her father taught her how to race cars, she's been addicted to it ever since.

Making loads of cash and owning a racing car and many luxurious things, she still has to keep her life undercover. But Suddenly, when a freak accident happens, y/n is now racing to keep her father alive to pay for his medical bills.

In school she's known as the sweet and energetic y/n but at night, she's known as the 'Racing Prodigy' Or her street name, Echo. One of the youngest street racers in Japan, able to win almost any race that came her way

She's been dating Katsuki Bakugou even since middle school but all of a sudden, he's getting suspicious of her behaviour

What happens when her two worlds are suddenly thrown into one?

Will she get expelled? How will Bakugou react?How long can y/n keep her secret?

*The only characters that I made up are her family and racing characters that are not from Haikyuu
*My original idea, I do not own any of the My Hero or Haikyuu characters
*Swear Warning, Cringy Content, Some fluff
*Haikyuu Crossover

Enjoy!~
:)