Mu Ru Yue, was a successor to her medicinal aristocratic family in Hua Xia. After being murdered by her enemy, she reincarnated in the body of a recently deceased good-for-nothing Miss in the Mu Family of the Martial God Continent, who had been beaten to death. In the throne room, she smilingly received a marriage notice to have a change in marriage to wed the infamous Ghost King from the Kingdom of Zi Yue. It was well-known that the Ghost King was stupid and foolish, with a ghost-like appearance. But who knew that he was actually the most two-faced person? Everyone laughed, thinking that a good-for-nothing was well-matched to a fool, but not in their wildest dreams did they even consider that she was actually a peerless genius in the making. When Mu Ru Yue looked at the man, who had a handsome God-like look, she said, gnashing her teeth, “Ye Wu Chen, you lied to me. How are you a fool at all?” The Ghost King chuckled as he affectionately embraced her. “By your side, I’m willing to be a fool that you can freely order around.”

Miki’s summary

The previous owner of Mu Ru Yue’s body had been poisoned. Because of this, her meridians were blocked, hindering her cultivation, which eventually led to her being known as trash. After being beaten to death, Mu Ru Yue, who had originally been a successor to a medicinal aristocratic family in Hua Xia, reincarnated into her new body. They want to seal my path? I will train to reach the peak of the realms! They give me a foolish prince as my husband? I can make do with him. It would be easier for me to deal with him, rather than with other candidates who would be thrown at me in the future. I shall strive to become powerful enough that nobody will be able to mock or kill me.

Wazu was an ordinary townsman who shut himself off in “Mountain”, because of an unfortunate course of events. After 2 years he decided to come down from the mountain to meet with people. But there are various misunderstanding about the “Mountain” which he shut himself off in. And then he meets with the people repeatedly. And after that. . .

A collection of four short stories and manga from Toaru Majutsu no Index & Toaru Kagaku no Railgun, previously only seen limited release. Because it has manga illustrations, the width and height of the light novel is greater than a regular light novel, using B6 paper instead of the usual A6 paper.

The light novel marks for the first time that both Haimura Kiyotaka and Fuyukawa Motoi are credited as illustrators on the same light novel.

Stories include:

* Stiyl Magnus – A single mission is given to Stiyl by the Anglican Church’s Necessarius. When Stiyl arrives in Academy City once more, his way is blocked by Theodosia Electra, a fellow member of Necessarius. The reason she is fighting with Stiyl lies with a girl named Patricia Birdway. A battle between magicians over the techniques of the Dvergr from Norse mythology begins.

* Mark Space – Mark, a magician from the British magic cabal the Dawn-Colored Sunlight, has been instructed to save his boss’ little sister. Mark managed to safely make contact with his boss’ sister aboard a survey ship, the Blue Research, but a magician who seems to be from a different cabal attacks. Mark plans to rescue his boss’ sister using his personal magic that uses tarot cards.

* Kamijou Touma – While walking through District 21 of Academy City, Kamijou Touma and Index run into a magician named Fleiss. Due to Kamijou’s usual misfortune, he somehow ends up on the run from Academy City along with Fleiss. In the process, Kamijou hears of some ridiculous information from Fleiss about an unknown lifeform on Mars.

* Uiharu Kazari – A carjacking occurs in Academy City. A member of Judgment, Uiharu Kazari ends up helping resolve the situation. The ultimate goal of the carjacking is a large scale terrorist attack on Academy City. In order to stop a large special vehicle roaring along at 120kph, Uiharu struggles alongside Yomikawa of Anti-Skill.

Volume 1 (Set between volumes 13 and 14)
A series of short stories set before the events of volume fourteen including how Team GROUP was formed.

Volume 2 (Set between volumes 16 and 17)
A series of short stories including two separate meetings between Touma’s and Mikoto’s parents, two tales involving two of the Level 5s of Academy City, and other funny stories involving some of the characters.

The story revolves around the Amakusa-Style Remix of Church being tested by the Church of England to become part of it, but later changes with the Amakusa being involved in a conspiracy after conspiracy being piled up on top of one another, forcing them to not only clear their name but aid in stopping the various conspiracies happening around them.

The chapters were released as part of the limited editions of the Blu-ray and DVDs of the Toaru Kagaku no Railgun S anime. Together they are equivalent to one regular Toaru Majutsu no Index volume.