Banba agrees to work for Saruhiko labs.  He's invited to their lowest level, where the cause of all the incidents is revealed. Then it gets loose...
How much do you know about it?
ماذا تعرفُ عنه؟
Wieviel weißt du darüber?
quelles sont tes connaissances 
le concernant ?
quanto sa esattamente di quell'argomento?
até onde vão as suas informações?