Mumei is confined in a classroom full of traps. 
Trying to escape along with his comrades, they set off the traps and are sent to another world.
A strange old man was waiting there. 
Mumei's classmates exhaust themselves without skills going up against an enemy that gets stronger the more he drinks.
A sense of foreboding reaches the bewildered Mumei.
Next, I'll go with this.
سأستعمل هذه تالياً
Dann werd ich als Nächstes …
Ahora optaré por esto.
Ahora optaré por esto.
Maintenant, c’est à moi de jouer !
Agora é a minha vez!