Araragi Koyomi is a third year high school student who is almost human again after having briefly become a vampire. One day, a classmate named Senjougahara Hitagi, who infamously never talks to anyone, falls down the stairs into Koyomi's arms. He discovers that Hitagi weighs next to nothing, in defiance of physics and common sense alike. Despite being threatened by her, Koyomi offers her help, and introduces her to Oshino Meme, a middle-aged homeless man who helped him stop being a vampire.

[Source: AniDB]

High school student Koyomi Araragi survived a vampire attack and can’t stop getting mixed up with all kinds of apparitions—but he’s about to face his biggest challenge yet: protecting his two little sisters! Karen and Tsukihi have a penchant for justice, and it’s up to Koyomi to keep them safe as they track down the cause of their apparitions.

[Source: Funimation]

On his way to the bookstore, Koyomi Araragi encounters Tsubasa Hanekawa whose face is covered with a bandage. The incident allows Koyomi to learn what has been happening in the Hanekawa household, but Tsubasa begs him not to tell anyone about it, saying she'll do anything to keep him quiet.

Without revealing her family's circumstances, Koyomi tells of the day's incident - he and Tsubasa buried a "cat" that had been hit by a car - to Meme Oshino. Meme tells Koyomi that he must immediately go to confirm Hanekawa's safety. He heads to her house, only to find...

So begins the nightmarish nine days of Golden Week.

[Source: Aniplex of America]

The bee apparition is now gone, and summer vacation where the phoenix apparition averted harm is over. Around Koyomi Araragi and the girls who started a new trimester, apparitions, or perhaps threats even worse, were creeping in ever closer. Tsubasa Hanekawa, Mayoi Hachikuji, Suruga Kanbaru, Nadeko Sengoku, Shinobu Oshino, and Hitagi Senjogahara. Their soliloquies, confessions—and farewells. 6 new stories are starting now.

Walking to school one day Tsubasa Hanekawa encounters a huge white tiger apparition at a crossroads that talks to her. The next day her house burns down. Homeless, and not wanting to stay with her family, she lies and tells them she has a place to stay, but instead sleeps in the old cram school. She's awakened by an angry and upset Hitagi Senjogahara who ridicules her for worrying her and drags her to her place to stay instead. The two of them soon discover that Araragi has gone missing and has urged them in a text message not to look for him.

[Source: Anime News Network]

The bee apparition is now gone, and summer vacation where the phoenix apparition averted harm is over-- Around Koyomi Araragi and the girls who started a new trimester, apparitions, or perhaps threats even worse, were creeping in ever closer. Tsubasa Hanekawa, Mayoi Hachikuji, Suruga Kanbaru, Nadeko Sengoku, Shinobu Oshino, and Hitagi Senjyogahara. Their soliloquies, confessions – and farewells.

[Source: Crunchyroll]

One day in February, Koyomi Araragi was taking a bath after finishing his studies for the college entrance exam. It was following the incident involving Nadeko Sengoku. He noticed a change on his body that could not be overlooked, so he sought advice from Shinobu, leading him to then contact Yozuru Kagenui and Yotsugi Ononoki. Is this change signifying retribution for everything that he has done?

[Source: Funimation]

Owarimonogatari follows the events of Koyomi Araragi as he meets a transfer student that turns his world upside-down.

During the month of October of his third year in high school, Koyomi Araragi is introduced to a transfer student named Ougi Oshino by his underclassman Kanbaru Suruga.

Ougi tells Koyomi that she has something she wishes to consult with him. When she draws the map of Naoestu High School, she finds something peculiar on the map of Naoetsu High School she draws.
This discovery reveals a tale that wasn’t meant to be told, and this makes Koyomi’s high school life totally different.

This is the story that brings to light “what” makes Koyomi Araragi.
This is the story that reveals the “beginning” of everything.

[Source: Crunchyroll]

March 25th—just another day during spring break.

Koyomi Araragi, a second year high school student at Naoetsu High School, befriends Tsubasa Hanekawa, the top honors student at his school. Tsubasa mentions a rumor about a "blonde vampire" that has been sighted around their town recently. Koyomi, who is usually anti-social, takes a liking to Tsubasa’s down-to-earth personality.

That evening, Koyomi encounters this rumored vampire: she is Kiss-shot Acerola-orion Heart-under-blade, also known as the "King of Apparitions." The blonde, golden-eyed vampire cries out for Koyomi to save her as she lies in a pool of her own blood, all four of her limbs cut off.

Kiss-shot asks Koyomi to give her his blood in order to save her life, and when he does, the very next moment he awakes, Koyomi finds himself re-born as her vampire kin.

As Koyomi struggles to accept his existence, Kiss-shot whispers,

"Welcome to the world of darkness…"

[Source: official English website]

Whether it’s studying stone shrines, exploring rumors, or playing a simple game of hide and seek, Koyomi Araragi is lending a hand to his friends with some of their tasks. In these untold tales, Koyomi and the girls in his cohort savor the quieter moments before their next apparition-related issue arrives. Witness the missing events in this essential prelude to his last chapter.

[Source: Funimation]

In the spring of his second year of high school, Koyomi Araragi met the beautiful vampire Kiss-shot Acerola-orion Heart-under-blade. Koyomi saved Kiss-shot, who was on the verge of death with all four of her limbs cut off, but only at the expense of becoming her minion and a vampire.

"In order to go back to being a human again, you must take back all of Kiss-shot’s limbs."

After receiving advice from Meme Oshino, an expert in the supernatural, Koyomi prepares to go into battle.

Awaiting him are three powerful vampire hunters—Dramaturgy, a giant vampire hunter who is a vampire himself. Episode, a half-vampire who wields an enormous cross, and Guillotinecutter, a quiet man who specializes in killing vampires.

Will Koyomi be able to take back Kiss-shot’s limbs from the vampire hunters?

Amidst the soft spring rain, the curtain rises on this fateful blood bath…

[Source: official English website]

Adaptation of Koyomi History short story released on Madogatari Blu-ray.

With help from Meme Oshino, the apparition specialist, Koyomi defeats the three powerful vampire hunters: Dramaturgy, Episode and Guillotinecutter.

Koyomi takes back all the limbs of Kiss-Shot-Acerola-Orion-Heart-Underblade in order to become a human again.

But, when he returns to Kiss-Shot, she reveals to him the cold truth of what it means to be a vampire—a creature of the night. Unable to take back what he has done, Koyomi feels nothing but regret and can only deny his dreadful fate. While Koyomi is struggling to face reality, his "friend" Tsubasa Hanekawa comes to him with a certain plan…

[Source: official English website]

Adaptation of the third volume of "Owarimonogatari".

"Doesn't it make sense that another Araragi, the flip side of you, exists in this world?"

This is what Araragi experienced during his transition from high school to college. The story of the continuation of the end (Owari).

The morning after high school graduation, Koyomi is standing in front of the mirror above the sink to wash his face when he suddenly feels like his reflection is staring back at him. He instinctively reaches for the mirror, and upon touching it, his fingers sink in...

When he comes to, Koyomi finds himself in a world where everything appears to be reversed.

[Source: official English website]

"Doesn't it make sense that another Araragi, the flip side of you, exists in this world?"
This is what Araragi experienced during his transition from high school to college. The story of the continuation of the end (Owari).

The morning after high school graduation, Koyomi is standing in front of the mirror above the sink to wash his face when he suddenly feels like his reflection is staring back at him. He instinctively reaches for the mirror, and upon touching it, his fingers sink in...

When he comes to, Koyomi finds himself in a world where everything appears to be reversed.

[Source: official English website]

Spring break, an interval of time between the second and third year of high school.
Koyomi Araragi encounters a blood-chillingly beautiful woman. The iron-blooded, hot-blooded, cold-blooded Vampire, she calls herself "Kiss-shot Acerola-orion Heart-under-blade."

On the brink of death after losing her four limbs, she asks Koyomi to save her. After experiencing fear, chaos, and finally conflict, Koyomi gives his own blood in order to save her.
But when he awakens, he finds himself re-born as her vampire kin.

Koyomi wishes to revert to being a human from a vampire. However, he must take back all of Kiss-shot's limbs to do so. Working as a negotiator, Meme Oshino stands in middle ground as Koyomi attempts to recapture her four limbs by challenging three powerful vampire hunters.

This hellish spring break, the final one of his high school life, is only just beginning.

[Source: official English website]

Now that he has graduated from high school, Koyomi Araragi’s story ends here. His story is truly over now, but the stories of the girls Koyomi saved - their stories - are not over yet. This is the prequel or sequel to their stories and their struggles.

Now in her third year of middle school, Tsukihi Araragi spends her days living her life unchanged from day to day. Yotsugi Ononoki continues to keep an eye on Tsukihi but makes a big mistake for the first time as he loses focus. To correct the situation, he heads over to Nadeko Sengoku’s house—.

[Source: Crunchyroll]

Once upon a time, there was a true story that happened about 600 years ago. It's a story of a very beautiful girl who lived in a country that no longer exists.

[Source: Crunchyroll]