Yuki Midorikawa: 22 books

Many of Natsume’s problems with the local yokai stem from his grandmother, Reiko. When she was his age, she went around challenging yokai, and when she won she sealed their names in her Book of Friends. But lately Natsume has been learning that Reiko was more than just a cruel conqueror. Will he...

Natori summons Natsume to help him with an odd exorcism case. A retired exorcist can no longer see yokai, even the ones who are his servants, and strange things have started happening at his house. Are his bound yokai trying to kill him to release themselves from their contract?

Can yokai and humans ever really be friends? Natsume meets a yokai who is trying to let go of his feelings for a human for both their sakes. But Natsume isn’t sure that kind of sacrifice is necessary. Can he help, or will his meddling only make their parting harder to bear?

A local exorcist has passed away, leaving behind a study packed with a lifetime of important yokai research. But his family are normal and don’t know where he’s hidden his workroom. Now all the exorcists in the area are on the hunt for the mysterious library. But Natsume can’t decide what is more dangerous—letting the other exorcists find the collection, or discovering it himself!

Natsume isn’t looking forward to meeting with one of his old classmates, even though his new friend Tanuma is coming along for moral support. But brash Shibata has more on his mind than just reminiscing—a house on his street is being haunted by evil dolls! Can Natsume help, or will his presence just make a scary situation even worse?

Even though Natsume is getting better at dealing with yokai, he still tries to stay uninvolved. But when he runs into a yokai with his head stuck in a jar, Natsume can’t leave him to suffer. But the yokai’s idea of a gift of gratitude turns Natsume into a little kid with no memories of his current life!

Natsume and his friends are visiting an old inn to see a yokai exhibition, but a sudden storm extends their visit into an overnight stay. All should be well, since the inn has a charmed door curtain that welcomes good spirits and keeps out evil. But tonight of all nights, they forget to put it out! Can Natsume and his friends protect the inn without endangering the friendly local yokai?!

Nyanko Sensei is recovering after being wounded in the last yokai incident, so Takashi is on his own when he accidentally releases a yokai right before the school festival. With new friends and his ever-strengthening relationship with the Fujiwaras, Takashi has more reasons than ever to keep the supernatural at bay. But does he stand a chance without Nyanko Sensei's power to back him up?