Natsume overhears whispers that a powerful youkai is reviving, later that evening he is trapped in a bottle as an offering.  Humans can’t see or hear him, so Nyanko-sensei decides to help the “best” way he can…
I didn't know they had a 
festival this time of year.
No sabía que hacían 
festivales en esta época.
No sabía que había un festival en estas fechas.
Não sabia que vocês fazem um festival nesta época.