In a house lives a very successful couple, a professional dancer and a lawyer, and with them live three children. Although, one's off to college to follow her father's footsteps while the youngest aspires to be like mother. They're the perfect picture of mother and father's wishes. Then there's one more daughter, the middle child, who doesn't want to dance or defend criminal cases in front of a judge. A daughter that is little more than a troublemaker in her parents' eyes. This daughter just wants to do one thing, one thing that her great grandfather helps her with. She wants to spike, to receive, to play with a team, and to win competitions to make it to nationals. This daughter wants to play volleyball. However, she is forbidden from playing volleyball, she is to become a dancer or a lawyer. But what her parents don't know, won't hurt them. This daughter plays volleyball without her family's knowledge. Her great grandfather puts together a community girl's volleyball team for this daughter. This daughter has it all figured out. That is until her uncle forces her team to have a practice match against the boy's volleyball team in her school. Where she meets a short tempered, brown eyed second year; a hot headed, blue eyed first year; and a hyperactive, orange haired first year that reminds her all too much of her mentor. How will the Karasuno boys deal with a girl that has more of an attitude than their other manager and is regrettably better at spiking than even the ace. Follow Mirabelle Musashibo as she tries to keep her parents in the dark of what she's doing, while still helping her uncle coach the volleyball team. The niece of Keishin Ukai, great grand daughter of Ikkei Ukai, and the girl who learned to spike from the legend of Karasuno: the Little Giant.