#1 - Long Way Home 9.00
Season 4 - Episode 13
Natsume, possessed by the youkai, thinks of an painful incident from his childhood involving the family he was living with at the time. The youkai offers to eat all his memories, so that he will no longer have to relive his pain.
#2 - The Stolen Book of Friends 8.91
Season 2 - Episode 1
While outside during school Natsume is hit with a ball while reading. He goes to retrieve the ball and ends up breaking a Youkai's seal (much like he had with Nyanko-sensei). Later that night Natsume and Nyanko-sensei discover a look-a-like of Nyanko, only to have him steal the Book Of Friends!
#3 - Other Side of the Glass 8.89
Season 4 - Episode 6
Natsume is trapped in a bottle by a youkai to be offered to another named Omibashira. Nyanko-sensei transforms into Natsume and goes around his school to ask his friends about Omibashira, but gets Tanuma involved. Tanuma is attacked by one of the youkai that trapped Natsume and loses him, but as he runs through the forest looking for Natsume he finds a mansion behind the school. When Tanuma is suddenly able to see the youkai walking up the steps to the mansion, he is found out by a youkai with a bag over its head.
#4 - To You, From Bygone Days 8.80
Season 4 - Episode 5
In the town Natsume used to live in, a girl recalls Natsume. She remembers his strange actions and wanted to understand him. Meanwhile, Natsume encounters a small Youkai which reminds him of the same girl and town.
#5 - The Little Fox's Hat 8.77
Season 1 - Episode 7
Natsume goes to a hot spring for a school trip, with an errand from Shigeru to pick up Teacups from a near by pottery. While there he meets and helps a little fox spirit, who quickly grows attached to him.
#6 - Humans and Youkai 8.75
Season 2 - Episode 13
Natori tells Natsume of a well near the mansion that holds a group of Oni. They are calling out to any Youkai. He also learns that Kai came down from the mountains to free the Oni. While looking for Kai, Natsume sets off one of Natori's traps in the mansion. Kai saves Natsume and heads off to kill Natori.Natsume follows him,to save Natori from getting killed. After he encounters him, he is forced to make an important decision. Which ones are more important to him? Humans or Youkai?
#7 - Five Day Mark 8.75
Season 1 - Episode 12
Natsume is cursed by an evil spirit which is sealed to a tree, not wanting to trouble his adopted family, he decided to run away from home.
#8 - A Chick Hatches 8.71
Season 2 - Episode 4
Natsume takes care of an abandoned egg from a nest, not considering it could be a Youkai. After it hatches, it turns out it is a rare baby spirit called Tatsumi, who thinks that Natsume is its parent. Natsume can't help but get attached to the little spirit even as Tatsumi grows tired and sick. But as Natsume takes care of Tatsumi, a mysterious spirit comes and wants to take away Tatsumi for his master... who wants to eat him!
#9 - A Place to Go Home To 8.71
Season 3 - Episode 12
Natsume returns home from school one day to realise that Nyanko sensei is not home. Whilst at the window, he sees a yokai that is trying to enter the house whilst calling out his name. Nyanko-sensei comes to the rescue but Natsume falls ill with a fever.
#10 - Fleeting Light 8.58
Season 1 - Episode 8
Natsume meets a spirit who used to be friends with a man who could also see spirits, but one day lost this ability.
#11 - Melting Into Spring 8.56
Season 2 - Episode 2
While fooling around in the snow, Natsume and Nyanko-sensei run into Gen, a forest guardian who lives inside a statue. Gen tries to take over Natsume's body, but instead takes over a snow rabbit that Natsume had made. Gen pleads Natsume to help him find an evil spirit who destroyed Sui, his guardian partner, and Natsume agrees. But it seems Gen isn't telling everything he knows...
#12 - The Moon-Splitting Festival 8.56
Season 4 - Episode 9
Natori is tasked with the job of finding and breaking the seal of Houzukigami, a god that was to participate in the Moon-Splitting Festival done every 10 years against Fuzukigami, another god. The festival is used by the youkai around the mountains to determine whether the harvest would be bountiful that year or not. Without Houzukigami, the match would end in a default win for Fuzukigami, causing the land to become barren. Natori tries to find the seal but is surprised to find Natsume at the festival disguised as Houzukigami, having been asked by Houzukigami's servants to stand in for their god. The match to be the winner is to catch a beast that was released from a pot. Houzukigami's servants tell Natsume to look for the real Houzukigami while they track down the beast. Joined by Natori, Hiiragi, Nyanko-sensei, and one of the servants, they look in a building by a waterfall. The beast suddenly appears and Natsume and Hiiragi are knocked off the deck of the building. After recuperating from being being dragged down the river, they try to run back to the building but are caught in a trap by Fuzukigami's servants which was meant for the beast. While unconscious, one of the servants is able to pick up a human scent from "Houzukigami", making them wonder if it's truly the god or not.
#13 - Youkai Exorcism Amid the Steaming Springs 8.50
Season 2 - Episode 3
Natori invites Natsume on a Hot Spring trip. But noises from the closet and a kimono-clad figure dangled from the ceiling make Natsume uneasy. Not wanting to trouble Natori because of his kind gesture to enjoy the Hot Spring with him, Natsume investigates the Hot Spring himself. During the night Natsume meets with the Youkai, where she comments that he is too soft, and attacks!
#14 - The Gap Between Humans and Youkai 8.50
Season 4 - Episode 7
Natsume is saved by Tanuma and the two escape from the banquet hall with the help of Natori, who was disguised as a youkai. Tanuma is drawn more into the world of the youkai and experiences it first-hand, which greatly worries Natsume. Blood marks are found all around the mansion and Natsume's fears come true when Tanuma is attacked by Omibashira, but is protected by a stone Natori gave him. After Natsume helps Natori seal Omibashira everyone is able to escape the previously sealed exits. Promising Tanuma that he'd tell him his complaints at school the next day, Natsume finally arrives back home.
#15 - Natsume's Book of Play 8.50
Season 3 - Episode 13
It is after exams and Natsume and his friends are planning on what to do for their school holidays. After being unable to come to a decision, the group heads home for the day. Natsume reaches home and is greeted by his relatives before heading into his room. When he enters he is greeted by his Yokai friends who constantly disturb him and they have invited him to attend a Dog Party with them.
#16 - The Door of Memories 8.50
Season 4 - Episode 12
Natsume, accompanied by Nyanko-sensei, set out to visit his old home. He visits a relative to pick up the key to the house, but is being followed by a youkai who wants him to draw a mouth for it. He leads the youkai away from the home of his relatives and Nyanko-sensei drives it away. When the two get back on track to finding the house, Natsume is suddenly attacked by the youkai and becomes lost in old memories.
#17 - Ayakashi Purification 8.45
Season 1 - Episode 9
Natsume meets a popular actor named Natori Shuuichi who can also see spirits, and has a side job as an exorcist.
#18 - That Which Is Not Human 8.44
Season 3 - Episode 6
Natsume accidentally bump into a woman and realizes that the woman had blood covered her body. He then follows the mark that the woman left with blood and found a house. When he open the door, he was surprised by the scene of some ayakashi that was badly injured. When he checks one of it, someone suddenly grab his neck and trying to kill him until another ayakashi help him and run off. There's been someone who kill ayakashi for blood and with the help of Natori, Natsume search Matoba who he thought is the one behind all of this. When he met Matoba for the second time, he can't escape the man.
#19 - Through the Autumn Wind 8.44
Season 3 - Episode 9
On the way home from school, Nishimura and Kitamoto spots Natsume on the bridge acting all weird and falling into the river below. After seeing Natsume fall, they panic and rush to Natsume’s help. Later that night whilst nursing Nyanko-sensei, Natsume’s bag starts to twitch and a stone yokai crawls out of it. Apparenly, Natsume picked up a weird yokai whilst he was in the river.
#20 - Temporary House 8.43
Season 2 - Episode 10
Strange things start happening at Natsume's home, like Toukou's plants get destroyed, and a strange Youkai starts wandering around his house. Natsume then learns more about Reiko and her life in this town. He also learns how to get rid of the Youkai who's wandering around the house.
#21 - Boys of the Deserted House 8.43
Season 2 - Episode 12
Natsume encounters a young boy named Kai sealed in a coffin in an abandoned house. Natsume sets Kai free and finds out that Kai is being stalked by a youkai. After a time, Natsume becomes the target of this youkai and stops the youkai's stalking with Nyanko-sensei's help. In the end Natori who turns out to be the stalker and who sealed Kai in the coffin, tells Natsume that Kai is a Youkai.
#22 - Stand-In 8.38
Season 4 - Episode 4
Yobiko, a youkai that can imitate the voices of others, sneaks into Natsumes' house and asks him to call out another youkai named Karikami. Long ago, Yobiko had been watching over a woman named Youko who was meeting with a man at a nearby shrine. One day the man stopped coming, due to an arranged marriage to another woman, so Yobiko decided to use his talent to talk to the girl. Eventually, he told her the truth about the man and ran away. When he came back to the shrine many years later, he found an old letter that had been sealed shut and wrinkled. Natsume and Yobiko later meet Karikami and after returning his name, Karikami restores the letter. Unable to read human letters, Yobiko asks Natsume to read it to him. Instead of a hateful message he was expecting, it is actually a letter of thanks for telling her the truth.
#23 - The Fox Child's Watch 8.38
Season 3 - Episode 8
Natsume has been invited by his uncle to go back to the Onsen pottery place where the Kogitsune lives. After hearing that a herb that could be use to speedup Nyanko sensei’s healing process is out in that woods, Natsume decides to go along.
#24 - A Single Photo 8.38
Season 4 - Episode 11
Natsume looks back at a photo of his parents, and old wounds are reopened. Natsume is having a fun day with his friends, but all of a sudden he gets a phone call. The house Natsume used to live in with his father will be sold. How will Natsume handle all of this?
#25 - Shigure and the Girl 8.36
Season 1 - Episode 4
Natsume's secret is found out by Sasada, the class president, during the "Trial of Courage." She asks for his help to find the spirit that lives in the abandoned school. Natsume denies the fact that he can see anything, but she won't take no for an answer. Meanwhile, the spirit, Shigure, captures the rest of their school mates, in fury of the school being torn down...