Natsume runs into a bearded yokai who wants help with an old letter, a legged-teacup that's taken up residence under his house, an aging kami who wants to return a borrowed mirror, and a pair of yokai who trap him in a jar as a treat for their hungry master whose seal has recently been broken.
The other stories are sweet and sad in the gently hopeful way of the rest of the series, but Natsume stuck in a jar, helpless as Nyanko-sensei somewhat successfully pretends to be his charge so friends and family don't get worried, is a hoot! Also, I love how Tanuma takes the opportunity to help his friend, despite the flak he knows he'll catch from Natsume after-the-fact for putting himself in danger. And with another familiar face joining the fight, Natsume finds himself on the receiving end of a little lecturing, too. Lovely, as always.