Alchemy Sovereign Against the Heaven - Chapter 2 - : The Arrogant Genius and the Good-for-Nothing

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

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

Between heaven and earth lies the greatest truth, and the manifestation of the great truth descends in the form of Gu.　　People cultivate the Qi of heaven and earth around their bodies to control Gu and exert their magical power.　　One year after his transmigration, Chen Qing finally discovered his special features on the day he contracted his first Gu. He was actually able to see through everything about the Gu...　　Therefore, he began to march toward the road to immortality step by step.

As Wanzhu Corporation’s number one assistant, Lin Hui was, without a doubt, an incredibly outstanding individual.

The CEO trusted him. The employees relied on him. Their business partners appreciated him.

Lin Hui’s career was like a duck to water. However, he had been secretly in love with his boss for several years.

Just as he thought his life would continue like this forever, he and his boss accidentally…

Within Wanzhu, no one could say no to Assistant Lin. Not even the CEO.

- Description from Novelupdates