In the real world, Hikaru has disappeared, and everyone has forgotten he exists.  Futaba visits his insane mother, hoping to get some answers..
I don't know anybody with that name.
Ich kenne niemanden mit diesem Namen.
No sé de nadie con ese nombre.
No conozco a nadie con ese nombre.
Non conosco nessuno che si chiami così.
Eu não conheço.
У меня нет таких знакомых.