Karasuno's Tigress (Haikyuu X Reader)

Ukai's 16-year-old half-sister, known as "Tigress," returns from her time in America. She, like her grandfather, is a volleyball genius. And, like her older brother, she participates in volleyball. She's a very well-known and accomplished volleyball player. When she returns to Japan, she lives with her older brother and, just like he did, starts to attend Karasuno.

There, she meets many new volleyball-obsessed friends. She decides to participate in the boys' volleyball team by coaching, just like her grandfather. During her time with the boys' team, she catches the eye of many, both well-known and unknown volleyball players. Let's see how that works out.

(This story is also on Quotev. There will be cussing and some spicy thoughts in this book, cause y'know, teenagers. If that's too much for you, you've been warned. This story is aimed towards girls, but anyone can read it. I'll probably make a male haikyuu story later.)