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.
And I'll be able to rescue my father, 
who was wrongfully imprisoned.
وسأقدر على إنقاذ والدي المسجون ظلماً
Sogar meinen unschuldig verurteilten
Vater werde ich retten können.
Y podré salvar a mi padre
que fue encarcelado injustamente.
Y podré salvar a mi padre
que fue encarcelado injustamente.
Je pourrai même sauver mon père
qui a été accusé à tort.
E questo vuol dire che potrò salvare mio padre, 
che è stato imprigionato ingiustamente.
Também vou ser capaz de resgatar meu pai,
 que foi preso injustamente.