The Sket-dan is getting filmed for an in-depth story by the AV Club, and their task is to unravel the mystery of the Glass Man, a case of serial window breakings around school. As the Sket-dan narrows down the suspects, the culprit becomes clear, but could this case be a little bit too easy?
Culprit? I'm out here every morning 
throwing dozens and dozens of pitches.
Hiraizumi Eiichi (Lanzador de relevo)
Eiichi Hiraizumi (Lanzador de relevo)
Culpado? Eu estou aqui toda manhã
 fazendo dezenas de arremessos.