"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.
that was in the planetarium 
in front of Shibuya Station.
كان موجوداً في القبّة الفلكيّة أمام محطّة شيبويا
ein Gerät, das aufgrund
der Explosion ausgelöst wurde.
que había en el planetario
frente a la estación.
que había en el planetario
frente a la estación.
utilisé dans cet ancien planétarium.
que estava no planetário em 
frente à estação de Shibuya.