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.
My girlfriend is a bit strong-willed.
صديقتي قويّة الإرادة بعض الشيء
Mi amante es muy voluntariosa.
Mi amante es muy voluntariosa.
La mia fidanzatina è una tipetta determinata.
Minha namorada é do tipo esquentadinha.