Kai's duty as a member of the Human Protection Agency is to ensure that the four races from The Great War are kept sealed in their graveyards. Humanity has been at peace for 100 years, until one day a portal opens and the world he's known ceases to exist.
A demon hasn't gotten out, 
and the world is at peace.
لم يهرب شيطانٌ ويعمّ السّلام في العالم
No ha escapado ningún demonio
y hay paz en el mundo.
No ha escapado ningún demonio
y hay paz en el mundo.
les démons ne se sont pas échappés,
et le monde vit dans la paix.
Non è scappato nessun demone
e il mondo è ancora in pace.
Nenhum demônio saiu
e o mundo está em paz.
Демоны ниоткуда не сбегали,
в мире царят тишь и покой.