"Let's meet at the place where it all began." The true plot is revealed as Takuru travels to the Hikariwo. There he eets the other person behind the series of brutal killings.  But a deeper mystery lurks in the background: what Serika is telling him doesn't make sense, and he's convinced that as horrible as the story is, there's more to it than even he knows.
You're overcome with a feeling 
of rage that's got nowhere to go.
يسيطر عليك شعور غضب لا مُتنفَّس له
Du hast auch so viel unterdrückte Wut,
die du nirgends auslassen kannst.
Pero tú te dejaste poseer
por un odio que no tiene lugar.
Pero tú te dejaste poseer
por un odio que no tiene lugar.
Comunque, tu sei ossessionato dal rancore
di non avere un posto dove andare,
Você foi tomado por um sentimento
 de raiva que não podia extravasar.