Due to sickness, the coach position of the Meisei High School baseball team is handed to Eijiro Kashiwaba. He is a ruthless man who forces the team to enter a Spartan training procedure. Tatsuya and Minami slowly discover stories about his past and wonder what his true intentions are.
| Actor | Role |
|---|---|
 Yuji MitsuyaTatsuya Uesugi (voice) | Tatsuya Uesugi (voice) |
 Noriko HidakaMinami Asakura (voice) | Minami Asakura (voice) |
 Hayashiya Shōzō IXKoutarou Matsudaira (voice) | Koutarou Matsudaira (voice) |
 Hideyuki TanakaEijiro Kashiwaba (voice) | Eijiro Kashiwaba (voice) |
 Kenji UtsumiEiichiro Kashiwaba (voice) | Eiichiro Kashiwaba (voice) |
 Kazuhiko InoueAkio Nitta (voice) | Akio Nitta (voice) |