Both short stories both take place in a world where people known as Killer Demons have each mastered a specific form of killing. Each story follows a different character’s encounter with one of those Killer Demons. Killer Queen and Deep End was originally submitted for but did not win a Dengeki contest before Toaru Majutsu no Index was published. It was later published in 2004 in response to Index’s popularity. Killer Device and Never End was written and published in 2005 due to the popularity of the first story.

A boy becomes an employee at a very unusual host club where they solve mysteries.

The story of Link's adventure to defeat the evil wizard Agahnim, who plans to sacrifice seven maidens to bring about the return of Ganon, the Demon King.

Real Drive is a "neo-futuristic science-fiction suspense" story is set in A.D. 2061, when a new, more secure information network called the Material Network (or "Metal") has taken over human society. However, aberrations begin to crop up as individuals chafe against the rigid system, and so-called "cyber divers" are dispatched to investigate these incidents. The main characters are the cyber driver Mari, an "intuitive girl" named Minamo, the team's head Eiichirō, the combat expert Sōta, and the android Horon.

Mutsu, a sophomore in high school who loves table tennis but has failed the entrance test and is unable to join the table tennis club. But suddenly a strange black girl appears there...! ?? Dating strange girls will change boys' youth a lot. Starting from the roof, Buchiage ☆ Spokon Seishuntan! !!

Ally is a great saint with rare powers of prayer. One day, during tea time, she is nearly poisoned to death by someone. So, she decides to pretend she's dead and become a baker, something she's always dreamed of! She secretly changes jobs and becomes an apprentice, hiding her true identity. But then she discovers that the baker's son is actually her former royal guard!? (Source: Kadokawa, translated)

Sako Machika is perfect and without flaws. She’s at the top of the student year with her excellent grades and has a cute face that makes everybody look twice. Excelling at her club, skilled at housework and chores, she’s the target of every boy’s admiration. “I…like you.” Wait, Sako-san confessed to me?! But…I’m just a nobody, we’re not a good match for each other! Yet out of nowhere— “It’s such a botched haircut, right?” “You were looking at my thighs the entire time.” She would suddenly cut her long and beautiful hair, shortening her skirt, showing an imperfect appearance while relentlessly approaching me… “As long as I’m not perfect—I have a chance, right?” It’s all an attempt to make us seem like a better match?! *Note: Chapter count includes an epilogue.*

A special collaboration project between Makoto Kubota and Double-S.

Tatsuki, the elder sister who works for an advertising agency, and her younger brother Torao, a university student in the middle of his search for himself. Despite not being related by blood, they live their life together in a dirty apartment, while Tatsuki's days are full of stress and uncertainty.

Original Twitter Comic

The demon-born seeds of this world will be retrieved. Everything is for the sake of the Goryo Shinju. The "spirit world" where evil spirits of rivers and mountains live. The "present world" where humans live. And the "empty world" at the bottom of the earth: ....... The "empty world" is a cesspool of "dirt" that flows out of the present world. Once upon a time, there was a sacred tree called "Goryojinju" in the land of the Yūrei. It was in charge of guarding the entrance to the false world. One day, it became very ill and a large amount of impurities overflowed into the world of the dead. The god of protection lamented it so much that he blocked the entrance to the false world with his own life. The stains were scattered into the present world as "demon-born seeds." In order to return the demon seed to the sacred tree, a Chinese medicine doctor's journey begins.

The supernatural action manga is set in 1969, in an alternate world where some people known as "Majin" live among normal humans despite having varying supernatural powers. The manga's story centers on a battle between Majin students and the Majin Public Safety Bureau in Tokyo University's Yasuda Auditorium. Source: ANN