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.
and humanity lost 
the Great War of the Five Races?
وخسرت البشريّة الحرب العظيمة
للأعراق الخمسة؟
Sid nicht existiert und die Menschen
den großen Rassenkrieg verloren haben?
y la humanidad perdió
la guerra de las Cinco Razas?
y la humanidad perdió
la guerra de las Cinco Razas?
et les humains auraient perdu
la Grande Guerre ?
e che l'umanità abbia perso
la Grande Guerra delle cinque razze?
e a humanidade perdeu a
Grande Guerra das Cinco Raças?
и люди проиграли
Великую войну пяти племён?