Okay so this isn't an official chapter but just a brief explanation on the game of volleyball and the teams for this story just incase anyone gets confused. 

Seoul High School: 

Setter- Choi Yu-na

Outside Hitter (Wing Spiker)- Amber Liu 

Right Side Hitter (Wing Spiker)- Kim Yongsun

Opposite Hitter- Hwan Ju-Hee 

Middle Blocker- Ahn Hyejin 

Libero (Defensive Specialist)- Jung WheeIn

Sejong High School (also located in Seoul): 

Setter- Moon ByulYi 

Outside Hitter- Krystal Jung 

Right Side Hitter- Park Soo-young

Opposite Hitter- Lim Kim 

Middle Blocker- Chou Tzu-Yu

Libero- Kang Seulgi 

The setter is the person who tosses the ball to a spiker for an attack.

The libero or defensive specialist is most the time the shortest person on the team and the person who wears a different colored jersey, they don't attack, instead they save the ball or receive hard serves. 

There are six players on the court with a net in the middle. Everyone but the libero is allowed to spike and there are two rows of players (front row/back row).