While on the road to their field trip, Class 2-C's bus is enveloped in light, and the Goddess, Vicius, summons the students and their teacher to another world. The Goddess hopes to raise them as Heroes to defeat the Great Demon Empire, and she welcomes the students after appraising their abilities with her crystal. However, Mimori Touka is appraised as an E-Class, the lowest rank... and he's branded a trash hero.
If they survive the ruins and reach 
the surface, we interfere no more.
‫إن نجوا من الأطلال ووصلوا إلى
‫السطح، فلن نتدخل بعد ذلك.
Wenn jemand es lebendig an die Oberfläche
schafft, wird er nicht mehr behelligt.
Si sobrevives y llegas
a las superficie, no serás una carga.
Si sobrevives y llegas
a las superficie, no serás una carga.
Si les héros survivent et en sortent,
alors nous n’interférons plus.
Se sopravviverà alle rovine
e raggiungerà la superficie,
Se sobreviver às ruínas e chegar à
superfície, não interferiremos mais.
Что?..
เสียงดังสนั่นจนดูไม่เหมือนการสอบเลย
มีเรื่องอะไรหรือเปล่า