After Natsume returned Amana’s name, she accused him of stealing her ring.  He has three days to find and return it before she burns down his house.  To make matters worse, the ring is trapped in the hair of a migratory youkai, and Nyanko-sensei is unable to use his powers.
I've always thought the world
Siempre he pensado que el mundo de los 
humanos es difícil para que usted viva en él.
Siempre he pensado que el mundo de los humanos es demasiado peligroso para usted.
Sempre pensei que o mundo dos humanos fosse difícil pra você.