Midterms are over, and Natsume leaves on a trip with Nishimura, Kitamoto, and Sasada. He realizes that the scenery he's viewing from the train is from one of the places he grew up in, when he was passed around from one family to the next. He'd thought he didn't have any good memories of the time, but then he remembers what happened when he lived there...

Without Sensei to protect him, Natsume has to remain constantly on guard. But the pressure of keeping secrets from his friends is causing Natsume to break.

A youkai from Natsume past has found him and memories of living with relatives before the Fujiwaras are explored.

Natsume is at home early one evening when he hears a knock on the door. He sees Tohko outside, asking to be let in. But when he opens the door, there's nobody there, and a gust of wind rushes past. Another Youkai is after the book of friends!

Natsume gets a call from a relative: his parents home is being sold. He tells himself that it doesn't matter, and that he's forgotten his past. But he's not nearly as over it as he thinks...

Natsume is going home for the last time, but first he must stop by his relative's house to get the key. But he is cautious, as inside is a youkai that tormented Natsume, and a girl that has always resented him.

Natsume is possessed by a spirit. Obsessed with returning home, he remembers the events that occured just after his father's death.

As the first delicate snowflake touches the cold ground, Nyanko-sensei dozes on his hot-water bottle next to Takashi Natsume. While his aunt prepares a warm dinner, Natsume takes a walk, welcoming the snow and the chilly weather. However, his peaceful promenade is disturbed by a white, fluffy snowman yokai with perturbing black eyes, searching for something warm and sparkly. With no further information, Natsume sets off to help find what the spirit desires.

On a rainy day, Natsume meets a young girl youkai. Her name isn't in the Book of Friends, but she wants his help anyway: she wants him to find a man she met once. The man couldn't see youkai normally, but a mischievous trick of the weather let him see her for just one day. For the next fifty years she visited him, hoping he'd see her one more time, but he never did. Now he's vanished. Can Natsume find him for her?

Natsume and his friends go to a distant hot springs to help with the renovations. When he arrives, he meets an old friend of Tanumas, but he quickly gets caught up in local youkai trouble. Tanuma's old friend is actually a youkai, and she threatens terrible things if Natsume reveals her secret.

Natsume encounters a pair of youkai who make cups that turn sake delicious. Their power is waning, and they've come to a spring that's said to restore spiritual energy. But the spring is occupied by a monster...

Natsume's town is visited by a stonewasher: a powerful magical being capable of purifying tainted rocks. The stonewasher is looking for its lost student, and turns to Natsume for help.

Natsume meets a youkai named Gomochi, who has come in search of Reiko. The youkai has a message for Reiko, and wants to thank her for a favor she did him long ago. In hearing his story, Natsume comes to learn more about his mysterious grandmother.

Natsume and Kitamoto are victims of a horrid curse.

Taki's brother suddenly comes home from college, and has something very important on his mind...

Nishimura finds Natsume coming to visit him each night at his house, but something seems strange...