A sports anime that isn't about Basketball? Sign me the frickfrack up.
tl;dr of Synopsis:
Some ginger midget called Shouyou Hinata or something like that has always loved volleyball, so he decides to start a volleyball group in middle school which some friends who have no flipping idea how to play volleyball, and somehow they manage to compete in some competitive volleyball tournament.
On one of the other teams was this lanky dude called Tobio Kageyama or whatever who is literally the same age as the kid, and who is also known as the 'king of the court' and literally destroys the midget's team and sends him into some form of happy depression.
The ginger midget then announces revenge upon the lanky dude when he goes up to some high school called Karasuno and join their volleyball team, but then it turns out the lanky dude ends up going to the same school as the ginger midget and a load of weird shit happens.
