The Black Book: Seven Deadly Sins - Chapter 6, Awakening of Darkness

The number one swordsman Zhao Jiangui is the martial world’s best hope for peace: All he has to do is seduce the Demon Sect Leader.

As part of the imperial family, every move by Chu Yuan in this game of chess is made with apprehension, fearing that with a moment of inattentiveness, the whole match will be lost in a single move. Ascending to the throne at eighteen, not half a year passes before civil strife erupts in Yun Nan. Though the thoughts of the old guard at the imperial court are not exactly identical, they are all waiting to see how the new emperor will put an end to this. Unexpectedly, before this side could make a move, a few thousand miles away, the King of Xi Nan, Duan Bai Yue, had already personally commanded troops to attack in all directions; not half a year had passed when peace was restored. Sparse moonlight shines into the palace; Chu Yuan stamped the wax seal himself, and had a secret letter sent urgently to Yun Nan 800 miles away — this time, what must we(1) give in exchange? Brush marks passed through the back of the paper; it almost can be seen, when writing this line, how angry the young emperor was. Duan Bai Yue spread out a piece of paper unhurriedly, replying with only one word. You.

[Mutual favorite sweet text + sick Jiao + cute baby] She is a gifted girl, and she is one step away from the Olympic champion, but she unexpectedly became pregnant, passed her dream and fell to the altar.

He is a genius scholar, a cold-blooded, decisive business wizard, a sudden car accident, it is said that his IQ is only five years old.

The first time we met, in the bathroom, he was pulling her clothes: you looked at my body and you have to be responsible for me.

Well, she’s in charge. No one cares about him, she cares, no one loves him, she loves, no one pets, she pets.

Unexpectedly, on a quiet night, he put her on the bed, little thing, this time it’s my turn to spoil you!

The woman smiled wickedly, why don’t you ask my richest father, actress mother, actor brother, MD brother, and that trash twin brother first?

During the day, she hurt him to the bone.

At night, he spoiled her like his life.

The paranoid, arrogant and sickly male protagonist and the salty and sweet sassy female protagonist tease each other sweetly!

- Description from novelbuddy

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