Toaru Majutsu no Index: Genesis Testament - Volume 1, Chapter 4: Interaction with Another World, the Starting Point — “R&C OCCULTICS Co.Ltd.”

“You nearly killed me in the past timeline and destroyed my life. Now that I have been given the chance to return to the past timeline, I will be changing everything and fight the future that was meant to be a dead end. Once we meet again, it will never be the same!”

When the only Virtual Reality game called Alternate World made the players gain abilities, the world changed drastically. The whole world undergoes a change of lifestyle, people started to manifest abilities, and playing the game became a job.

Manato Tsukasa, a player who is also one of the players of Alternate World was targeted by his enemies during the evening before his wedding and was almost killed in the process. Due to a certain encounter, he was allowed to gain a second chance to go back to the past and change everything.

With the chance to change everything and start from scratch, he decided to take advantage of all his knowledge and so that he can prepare to kill the person who ruined his life. And to start his vengeance against his enemy, he played the game again that didn't only change the gaming industry but also the whole world.

– Question: “What is scarier than the personal experience of transmigrating into a horror movie?”

Anonymous: “Transmigrating into a movie you’ve never seen before.”

– “Poor comment! There’s nothing scary about that!”

Anonymous reply: “You sure? Can you be sure your dad isn’t a murderer? Can you be certain your spouse isn’t out to kill you for insurance money? Can you even be certain there isn’t any hidden lethal weapon in your son’s lunchbox? The scariest thing is that you have never seen this movie before so, you have absolutely no idea of any ‘surprise’ that awaits you ahead!”

Hence, this novel is also called .

A line to sum it up: The female lead transmigrates into various movie adaptations of real stories, and conquers the audience.

- Description from Novelupdates

The formless ancient world was infested with despicable demons. They hunted and feasted on mankind, keeping the human civilization constantly in a weak and suppressed state.

During the first known year, a magical mountain descended into the world from the realm of the Gods. Carved on this enormous mountain was a message: ‘Heaven Prevails’…

After the Grand Descent, a name that was given to the descending of the mountain, the Three Great Sages made their ways to Mystic Mountain where they learned to harvest what we now call magic, establishing the Mystic Cults and eighty-one sacred shrines to help aid mankind with the cult’s mystic powers against the eternal fight to the death with demons.

- Description from Novelupdates