Natsume's Book of Friends volume 9 features story and art by Yuki Midorikawa.

Natsume learns that no good deed goes unpunished when an irate yokai accuses him of stealing her ring when she came to the Fujiwara house to get her name returned. Natsume thinks he knows where the ring has disappeared to, but can he find it in time, or will the place he's come to think of as home be destroyed by the vengeful yokai?!