History YMMV / NatsumesBookOfFriends

** Kirinoha is a shy youkai who takes the form of a young boy with PeekABangs and wants nothing more than to see the ocean.

** ''LightNovel/{{Durarara}}'' as well for the Hiroshi Kamiya connection and being made in the same studio. Crossovers between the two are also common.

* TearJerker: This show is ''packed'' with them. The sensitive are advised to watch with a wad of kleenex at the ready.
** The part in Episode Six [[spoiler:where Natsume cries upon seeing the photograph of the Youkai girl he'd grown attached to, finally getting to be with the human she had so badly wanted to meet all her life, if only for a few hours before she vanished.]]
** ''Any'' moment where Natsume feels less like an outcast and more like he has a place where he actually belongs doubles as both this and a CMOH.
** The episode with the firefly spirit and her only friend, which had lost the ability to see her.
** Episode 4 of Natsume Yuujinchou San, when the youkai haunting a tree drops down to give the revisiting Natsume a gentle hug.
** Episode 5 of the same season when the little youkais watching over the sick Shin'ichiro try to cure him by making their own version of a stethoscope and the little youkai with its hair in a bun sorts of sings to him while shaking the end of the "stethoscope" beside Shin'ichiro's head.

* FoeYay: Part of Matoba's "creepy" vibe involves making plenty of unnecessary physical contact with Natsume. Later, all of his attempts to get Natsume to join the dark si...clan.

* SomeAnvilsNeedToBeDropped: Don't ignore or shoo away children who have seen or heard something that's frightened them - they may have spotted someone malicious or something dangerous you've failed to notice.

** With, of all series, ''Manga/KurokoNoBasuke'', judging by the multiple crossover fanarts on Pixiv and the fact they aired around the same time. It helps that Natsume and Akashi are both voiced by Creator/HiroshiKamiya.

** With, of all series, Manga/KurokonoBasuke, judging by the multiple crossover fanarts on Pixiv and the fact they aired around the same time. It helps that Natsume and Akashi are both voiced by Creator/HiroshiKamiya.

* DracoInLeatherPants: Matoba Seiji, for obvious reasons.
* EarWorm: The opening themes of seasons 2 and 3.

** Durarara!! as well for the Hiroshi Kamiya connection and being made in the same studio. Crossovers between the two are also common.

* CrowningMomentOfHeartwarming: [[Heartwarming/NatsumesBookOfFriends So many that]] making a DrinkingGame out of it would have you unconscious by halfway through the first season.

* AmbiguouslyEvil: The end of chapter 62 can give that impression [[spoiler: about Natori]]. Some youkai may also be applicable to this.

* EarWorm: The season 3 opening theme.
** This troper found season 2's opening to be this as well
* EnsembleDarkhorse: The black Nyanko-sensei [[spoiler: a god who was trapped in a Maneki-neko, much like Madara, except this one is black]] appears in as much official merchandise as Nyanko-sensei himself (meaning [[SeriesMascot a]] '''[[EverythingsBetterWithPlushies lot]]'''), despite [[OneSceneWonder only appearing once]]. He's also popular in fan art.

* FriendlyFandoms: With, of all series, Manga/KurokonoBasuke, judging by the multiple crossover fanarts on Pixiv and the fact they aired around the same time. It helps that Natsume and Akashi are both voiced by Creator/HiroshiKamiya.

** And then there was that part in Episode Six [[spoiler: where Natsume cries upon seeing the photograph of the Youkai girl he'd grown attatched to, finally getting to be with the human she had so badly wanted to meet all her life, if only for a few hours before she vanished.]]

** The episode with the firefly spirit and her only friend, which had lost the ability to see her. [[Anime/GraveOfTheFireflies What is it with anime, fireflies and tear jerkers anyhow?]]

** Every goddamned episode.

* FriendlyFandoms: With, of all series, KurokonoBasuke, judging by the multiple crossover fanarts on Pixiv and the fact they aired around the same time. It helps that Natsume and Akashi are both voiced by Creator/HiroshiKamiya.
** Durarara!! as well for the HiroshiKamiya connection and being made in the same studio. Crossovers between the two are also common.

** The episode with the firefly spirit and her only friend, which had lost the ability to see her. [[GraveOfTheFireflies What is it with anime, fireflies and tear jerkers anyhow?]]

* FriendlyFandoms: With, of all series, KurokonoBasuke, judging by the multiple crossover fanarts on Pixiv and the fact they aired around the same time. It helps that Natsume and Akashi are both voiced by HiroshiKamiya.

* FriendlyFandoms: With, of all series, Kurokonobasuke, judging by the multiple crossover fanarts on Pixiv. It helps that both Natsume and Akashi are both voiced by HiroshiKamiya.

* FriendlyFandoms: With, of all series, Kurokonobasket, judging by the multiple crossover fanarts on Pixiv. It helps that both Natsume and Akashi are both voiced by HiroshiKamiya.

* FriendlyFandoms: With, of all series, Kuroko's Basket, judging by the multiple crossover fanarts on Pixiv. Actually, any series that has HiroshiKamiya as character WILL have crossover art with Natsume.

* FriendlyFandoms: With, of all series, KurokonoBasket, judging by the multiple crossover fanarts on Pixiv. Actually, any series that has KamiyaHiroshi as character WILL have crossover art with Natsume.

* Periphery Demographic: Actually has a sizable male fanbase in spite it being a shoujo.