Naruto: Shinobi Payday - Chapter 26: He’s... breaking space?!

Jiang Pengji got something called the Court Intrigue Stream System.
System: “Your goal is to become the most prestigious woman in the kingdom (the Queen)!”
Jiang Pengji: “Okay, System. No problem!”
Years later, she met the target by becoming the most prestigious woman (the Empress).
Jiang Pengji: “Well done, no?”

- Description from Novelupdates

The Fourth Shinobi World War is over. All enemies are defeated. Finally, a long peace reigned in all countries. The Seventh Hokage laid down his arms and lost all his Youth Power. One dream, the goal for which he spent his whole life, has been achieved. His path is over. Is this really the end? Could it end so easily? What if the Savior of this World turns into an arrogant and cunning ruler?Perhaps no one would ever have been able to predict such a result. On that day, everything changed ... Countries, riches and power, the most beautiful women and their young daughters - he will subdue them all! The Seventh Hokage with the strength capable of conquering the heavens chose a different path, now he will take everything for himself and pave the way to absolute world domination!

Being a bottom feeder in society is an unpleasant experience.That's how Kiro felt after being left for dead in a back alley. Abandoned and disappointed by the 'work hard' ethic his parents left for him.'At least the heavens are weeping for me.' As the light from his eyes faded, he declared as the last act of defiance.He awoke in a room he hadn't seen in ten years. Whether it was due to sheer luck or divine intervention, he was grateful.'Through the VR game, Asgard, I'll become filthy rich in this life time.'Kiro was blissfully unaware that his return was a cry for something greater, for the underlying threats that hovered over his world.

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