Kyoukai Senjou no Horizon - Volume 1, Chapter 06: Fated Ones Beyond the Door

When 18-year-old Kyle Conner arrives at his aunt's for a summer holiday, he expects relaxation and freedom. Instead, his life is forever altered when he crosses paths with Lilith, the demon of lust and second-most powerful entity in the underworld.Forced into a dark pact, Kyle is transformed into a demon and gifted with a mysterious system that promises immense power. But this newfound strength comes with a deadly price: Kyle must hide his true nature and navigate the treacherous world of demons, all while being hunted by Lucifer and other malevolent forces.As Kyle struggles to control his newfound powers and unravel the secrets of the system, he discovers his ultimate goal: to overthrow Lucifer and bring about a new era of peace. But with the forces of darkness closing in, Kyle must confront the darkness within himself and make impossible choices to survive.Will Kyle be able to master his demonic powers, outwit his enemies, and fulfill his destiny? Or will the weight of his newfound responsibilities consume him, dooming humanity to eternal darkness?

Human civilization expanded into space, and its territory spanned across galaxies.

During this great trend of interstellar migration, Zhou Qing accidentally awakened the power of traveling to various Astral Realms. He was able to create [Astral Realm Apostles] as vessels for his soul and project them onto different realms. This allowed him to travel through various worlds with different identities.

His unremarkable life was met with an unexpected twist of fate. Every time he created a new Apostle, it was like being reborn.

Yet, slowly, he realized that the Human civilization wasn’t completely ignorant about the existence of other realms…

——

Multiple-dimensional worlds, multi-dimensional factions. This is an clash of fate between realms!

And he is the only being who is able to travel amongst the realms in countless different shapes and forms — The Astral Apostle!

"I hope my wife liked the arrangements... for the wedding night."

A series of short stories in the world of Toaru Majutsu no Index organized into chapters featuring Kanzaki Kaori as the protagonist, going around the world and space doing missions for the Church of Necessary Evil, however, there is more than meets the eye as each incident is connected.

One chapter was bundled with each limited edition release of the Toaru Kagaku no Railgun anime DVD and BDs, with all of them together being equivalent to a single normal Toaru Majutsu no Index volume