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.
A skill that can slice through 
even the thinnest paper
تقنيةٌ يمكنها قطع أرفع الأوراق حتّى
Eine ultra genaue Technik, die selbst
durch das dünnste Papier schneidet!
¡Una habilidad que corta
la más delgada hoja
¡Una habilidad que corta
la más delgada hoja
Elle duplique un papier
en le coupant en deux.
Una tecnica incredibile che permette
di dividere anche il foglio di carta più sottile!
É uma técnica que pode 
fatiar até o papel mais fino...