Seiichi spends time training F-class for the upcoming class competition, but when the day finally arrives, Seiichi is nowhere to be found, leaving F-class to defend the academy from the apostles of the Great Devil Order!
If you're sloppy with your work,
Wenn du so faulenzt, …
Si no son diligentes,
Si no sois diligentes,
Si vous continuez
à faire n’importe quoi,
Se fate i negligenti,
Se continuarem relaxando dessa forma,
Если будете несерьёзно 
относиться к делу,