Soul Forging System - Chapter 62: Mathaven

Long Chen was meant to be the young master of Dragon Hall, yet due to a twist of fate, he grew up in a remote small city. Even with his rare talent, he couldn't overcome the schemes and betrayal of his beloved fiancée. His Emperor Meridians were seized by his fiancée, reduced to a cripple, and at the brink of death, Long Chen awakened the greatest Constitution of all ages..

Seven years ago, Shen Qianshu is impregnated with Ye Ling’s child in an accident.Seven years later, the little boy becomes famous and is thought of as the nation’s son.

The journey to the martial peak is a lonely, solitary and long one. In the face of adversity, you must survive and remain unyielding. Only then can you break through and continue on your journey to become the strongest. High Heaven Pavilion tests its disciples in the harshest ways to prepare them for this journey. One day the lowly sweeper Kai Yang managed to obtain a black book, setting him on the road to the peak of the martials world.

- 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