Violence: Again, nothing worse than previous seasons. If you've gotten this far, I can't think of anything out of the ordinary that would cause distress.

Sex and Nudity: None. It's very clean.

Theological Themes: Again, I can't think of anything out of the ordinary. Natsume has his usual youkai antics.

Problematic Themes: Nyanko-sensei likes to drink, same as ever.

Overall: At the beginning of this season, I was shocked. As Natsume began to introduce himself and his world, I realized just how much he had changed. It was so subtle that I didn't even pick up on it until now. And yet it was so fitting and made sense.

Natsume has grown so much from the timid loner he was in the beginning, desperately trying to hide from the youkai who can't seem to leave him alone. He has so many friends, including Tanuma, Taki, and Natori, all of whom understand his struggles. He no longer resents the youkai who surround him, and has grown to love and respect both worlds that he belongs too.

This season also has a strong relation to the past. We get to see much stronger glimpses at Natsume's past and how he dealt with youkai as a young child. We also get to see a bit more of Reiko, who has some ties to Natsume's foster family.

The Matoba clan also plays a further role in the series, taking up the role of an antagonist, without disrupting the flow and charm of the series as a slice of life.

Really, Natsume's Book of Friends is a beautiful series that keeps getting better and better. I cannot recommend it enough.