Oneshot from Nisioisin and Kawada Yuuya. A boy suddenly wakes up to find out he's in the body of a High School girl. Who is she and how did he switch bodies?

Kurokami Medaka, a first year, is elected as Student Council President, and the first thing she does is establish a suggestion box. Since she was just elected as Student Council President, she's holding all the Student Council's responsibilities, and wearing their armbands. So she asks for her childhood friend, Hitoyoshi Zenkichi, for help. After filtering through the suggestions, which were mostly ridiculous complaints or congratulations on becoming president, they find out the Judo Club needs one more member to participate. So, Medaka volunteers her and Zenkichi, who have both been practicing Judo for years, to help train the club and borrow Zenkichi for the match.

The first instalment of the Boukyaku Tantei Series. Okitegami Kyouko, also known as the forgetful detective. She forgets everything in a day, and solves cases (almost) immediately! An unfortunate young man, Kakushidate Yakusuke, gets caught up in every case and is always the prime suspect! He cries out, "Please let me call a detective—!!!" A swift development, a fleeting memory. Will Kyouko-san be able to solve the case before she forgets its details? (Source: Kodansha, translated)

Iori is a high school girl who doesn't know what she wants to do with her future, and tends to run away from things. One day, she is attacked by strange dead-eyed people on her way to school, only to be saved by an equally mysterious long-haired man. Later that day, her friend at school, Jion, seems to fall under the same murderous influence. To her surprise, she finds herself capable of defending herself from his violent attack. Afterward, the long-haired man she met in the morning, Zerozaki Soushiki, arrives once more, this time to invite her to become his little sister. What has Iori become involved with, and will she be able to survive this change to her life?

The first installment of the Sekai Series. Two siblings in the process of crossing a forbidden line, Hitsuuchi Samatoki and Hitsuuchi Yorotsuki. Two friends, Mukaezuki Hakohiko and Kotohara Ririsu. A locked-room murder at the school cracks their worlds… (Source: Kodansha, translated)

The elementary schooler unlike any other, Kugi Kizutaka, is searching for "useful pawns" in order to achieve his own ambitions, comes to learn of Mizukura Risuka, a magician with the title "The Red Witch of Time." Risuka had left the Kingdom of Magic through the Gate, chasing after her father, a great mage called both "a God" and "a Demon." An unpredictable and unchained magical tale! (Source: Kodansha, translated) *Note: The serialized chapters 16 and 17 were merged into one chapter in volume 5.*

Five short stories, one for each of the Bakemonogatari girls which appeared in the complete guidebook. Hitagi Buffet Mayoi Room Suruga Court Nadeko Pool Tsubasa Song

The story centers on an 11-year-old boy who hates the lack of unique individuality in the world, and hates that he himself lacks individuality. One day, he finds that everything that might give a person individuality — such as their faces, names, and personal information — have been erased from his sight, as if by a marker pen. He later learns that this is a fatal disease, and that he will not live past 12. He rejoices, having acquired the unique trait of "tragic main character," and moreover takes great pleasure in being the first to die from this disease so the disease will be named after him. At least, until a girl appears with the same disease. He quickly becomes disappointed that the girl seems to have a more unique spark to her, and her life expectancy is even shorter than his. To top it off, he learns that the disease might end up being named after her. He resolves to kill her before that happens.

The forefront of new youth entertainment! "Now then, let's commence the Zerozaki" The Zerozaki Clan is a family of demonic killers, ranked third among the Killing Names. The eldest brother whom is a leader of the clan is the user of Suicidal Tendencies (Mind Render)—also known as the Twentieth Hell—Soushiki. What awaits him on the other side of the breathless turmoil......?! The forefront of new youth entertainment is here! (Source: Kodansha, translated)

"I don't know anything. You're the one who knows... Officer Araragi." Cracking down on a "rumour" before it can turn into a ghost story. Police officer Koyomi Araragi has begun working at the Hearsay Department of Naoetsu Station. Hitagi and Tsubasa, who have left town. What paths have the three have chosen after turning 23 years old... and what feelings will Koyomi convey in the end...? As one knows more, the more you find things you don't know. These are the modern-day oddities! Oddities! Oddities! For all time, these hearts in love cannot be unbound. (Source: Kodansha, translated)

Around 600 years from the present day, a now-destroyed country was where the girl called the "Fair Princess" had lived. With such beauty that anyone would offer one's life for, the road the girl trod on became a mountain of corpses. These are the legendary oddities! Oddities! Oddities! Youth is cruel like a fairy tale. (Source: Kodansha, translated) *Note: The Princess Beauty short story is included in the chapter count.*

Misogi Kumagawa, the 66th president of Hakobune Private Middle School, makes an unprecedented request to the new student, Medaka Kurokami. The episode of Medaka's middle school days, which have been shrouded in mystery, are now revealed! Episode 0, "Hakobune Middle School 1st Year, Medaka Kurokami!" The "final" and "first" story comes to light!