College student Iwatani Naofumi is reading a book titled "The Records of the Four Cardinal Weapons" in the library when he is suddenly summoned to another world and told he has to save the world as the Shield Hero, one of the Four Cardinal Heroes. And one morning, he finds all his money and equipment gone.
Well, you can certainly go home after 
you fight off all the incoming Waves.
يمكنكم بالتأكيد العودة إلى الدّيار بعد
أن تتصدّوا لكافّة الموجات القادمة
Wir können dich wohl auch zurückschicken,
wenn alle Wellen besiegt wurden.
Si repelen todas las Olas
que se avecinan
Si repeléis todas las Olas
que se avecinan
Tu pourras retourner dans ton monde
quand toutes les vagues
Ovviamente vi sarà permesso tornare a casa
una volta sconfitte tutte le prossime Ondate.
Bom, você pode voltar pra casa assim
que lutar contra todas as ondas.
Другой путь:
успешно отразить все грядущие Волны…