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.
In that case, how about this?
في هذه الحالة، اعطني رأيك بهذا
Wie wär’s dann … hiermit?
En ese caso, ¿qué tal esto?
En ese caso, ¿qué tal esto?
Dans ce cas, que dis-tu de ça ?
Che ne dice
Nesse caso, que tal isto?