"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.
I agreed because she told me that 
getting psychics out of Shibuya
وافقتُ لأنّها أخبرتني أنّ إخراج النفسيين من شيبويا
Dem hab ich zugestimmt,
da sie meinte,
Aceptamos porque dijo
Aceptamos porque dijo
Elle m’a convaincue en me disant
qu’en éloignant les espers de Shibuya,
Ho acconsentito
Eu concordei porque ela me disse
 que tirar os psíquicos de Shibuya