Ren returns to the town of his childhood, Kaminohara. 
Strangely, Ren is unable to recall any memories of the town. 
Meanwhile, his smartphone installs a mysterious game called Monster Strike — heralding the start of a desperate battle!
I am the one and only Oragon!
Ich bin der einmalige Oragon!
¡Soy el único e inigualable Oragon!
¡Soy el único e incomparable Oragon!
Je suis Oragon, le seul et unique !
Eu sou o especial Oragon!