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!
It seems there are memories
better left forgotten.
Es gibt Momente, an die man sich
lieber nicht erinnert.
Parece que la gente tiene recuerdos
que sería mejor haber olvidado.
Parece que hay recuerdos
que es mejor olvidar.
Il y a certains souvenirs 
qu’il vaut mieux ne pas se rappeler.
Parece que as pessoas têm memórias
que ficariam melhor esquecidas.