Mini Theater 1
Seishun Academy faces off against Rikkai University-Affiliated Middle School in an unofficial rematch. Instead of playing tennis, the players end up getting distracted by a game of Acchi Muite Poi and a battle between whose data is superior.

Mini Theater 2
Mysterious love letters are appearing in shoe lockers at Seishun Academy. Sadaharu Inui sees this as a perfect opportunity to observe the regulars' response to receiving a love letter addressed to them.

Mini Theater 3
Seiichi Yukimura asks his vice captain, Genichirou Sanada, to be the model for his next painting. Unfortunately, Sanada's reluctance doesn't seem to be doing anything for Yukimura's creativity.

[Written by MAL Rewrite]