I'm very disappointed that the auther doesn't know the volleyball positions. Like OP hitters play in zone 2 or on the right side of the net if you look at the net directly, and OH hitters in zone 4 on the left side, and the position of the libero when the play is started goes to zone 5 on the left side, and the OH goes in zone 6 middle. I would love it if the auther makes some adjustments and does his own volleyball research about the game and the rotations. But overall, the idea and the characters are amazing tyy for the chapter