Valhalla Saga - Chapter 45

She was the heiress of the influential military and political Shen family. She possessed an exceptional face and a cool demeanor. Although she was the apple of her family's eye, she was disliked by her birth mother.He was the only heir to the immensely wealthy and powerful Fu family. Powerful, arrogant, and cold, he was the captain of a stealth corps and the youngest commander.To fulfill her grandmother's final wish, they got married in a flash. Initially, she regarded the marriage as a mere contract, but she did not expect to elicit his utmost admiration.

Mu Zhiyan, after being transmigrated a millennium (1000 yrs) into the future, discovered that he was raised by his adoptive parents as a tool for them to access the heritage his (dead) biological parents left behind. When he was at a loss for what to do next, he discovered that his body hosted an additional
pharmaceutical system.

For a chance to return to his era of Earth, Mu Zhiyan decided to practice and practice; he must train the system to full level as soon as possible.

However, reality gave him a slap in the face. The world is dangerous and dreadful, making Mu Zhiyan recall his mother’s words of holding a thick thigh, resulting in him locking his eyes on a cool general…

So the rumored mysterious Mu Master faced General Han with a serious face: “I allow you to follow me, General Han.”

General Han: “…”

- Description from Novelupdates

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

When she woke up again, she found herself become a peasant’s wife…