Counterattack System appeared when I'm already At The Mahayana Realm - Chapter 590 - 589: The 9th Mother Planet

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

[ WARNING! MATURE CONTENT R+18 ]Synopsis:In the thousands of years of buried and recorded history, the mighty Godents—humans who arbitrarily gained extraordinary powers through a mysterious celestial body known as the Goddess—reigned supreme.After seemingly countless debates and wars of all kinds on how to maximize the utilization of the omnipotent comet that landed on Earth, the Summit Academy was thoroughly built.An academy with unique students whose words were infinitely more absolute than a mere third-world country's government...An academy where human depravity was constantly challenged and displayed against the nature of goodness...In this grand society that was founded for the sake of superficial peace and schemes in the shadows, a certain piece of information reached those in power.“The M-Rev File was lost.”A mysterious document allegedly containing critical information about the Goddess...Now presumed to be at the hands of an heir of one of the Seven World Corporations... and at the same time, a royal student in the very prestigious academy.Amidst the echoes of malice, one mercenary who appeared out of nowhere and with the questionable mission of protecting this female student was admitted.Student Name: Aeon ???Additional Information: ???However, all things considered, on Aeon's first day in this school that could decide a person's future in the blink of an eye, he received a peculiar text message—/ I miss you... /A/N: This R+18 story isn't something just to satisfy the reader's lustful nature...

A master assassin transmigrates into an interstellar era.