Was it you that night? - Chapter 21 - : I’m the One Who Let You Down

When the last alien on the world was bound to a stupid but cute world-saving system thinking he was a human:

A resource depleted world:

Alien: “I can help them deplete 5% of the world’s population in the short term, this way, this planet can continue to survive.

System 2d14 was frightened to tears: “No, don’t! Lord host!”

One day:

System 099 was shocked: [Lord host, the record you set for completing one’s first world has been br-broken by a rookie!]

Big boss Huo Li raised an eyebrow in intrigue: [Oh? Who was it?]

A certain alien happily thought that he was invincible among all carbon based life-forms! Until…… he met a powerful psychic ability user!

A horrified alien: “Hey! Why can’t I control myself?”

Powerful psychic controller gong x ultimate evolution of carbon-based organisms shou

Loyal dog with a strong sense of responsibility gong x always pretending to be human black belly shou

In the beginning there is a love-hate relationship and mutual dissing, later there is a pair of husbands cooperating to fight monsters~

- Description from Novelupdates

Chen Feng, of modern earth, had suffered bad luck since birth. After finding the legendary “lucky artifact,” his bad luck peaked and he became the only person killed in an earthquake. By a twist of fate, he found himself transmigrated into a different and magical world! A world much larger than earth. A world only partially explored due to the dangers within. A world where human civilization centered around genes. In this world, human beings possessed all sorts of abilities due to genetic fusion. Some went on to create world-changing technologies with their mysterious genetic abilities, while others went on to become undefeated genetic warriors with their combat genetic abilities. How will Chen Feng fare in this new world?

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