As Takeru starts to feel anxious about whether or not he can actually make a difference, Professor Kouzuki demands more concrete evidence of his knowledge about future events.
To do nothing.
.عدم فعل شيء
Nichts zu tun.
No hacer nada.
No hacer nada.
Ne rien faire.
Non fare nulla.
Não fazer nada.
Ничего не делать.