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.
That teleportation circle transports 
the lowest-ranked hero to a set of ruins.
‫ستنقل دائرة الانتقال تلك أقل
‫الأبطال درجة إلى أطلال معينة.
Mit einem Teleportationszauber versetze ich
den rangniedrigsten Helden in eine Ruine.
Ese círculo de teletransporte
te llevará a ciertas ruinas.
Ese círculo de teletransporte
te llevará a ciertas ruinas.
Ce cercle de téléportation vous amène
dans des ruines spécifiques.
Quel cerchio magico trasporterà
l'eroe di rango più basso presso certe rovine.
Esse círculo de teletransporte levará o herói
mais fraco para uma determinada ruína.
Сей магический круг телепорта
перенесёт вас в развалины.