The Greatest Showman - Chapter 3:

Tang Zhou dreamed that he was cannon fodder in a novel.

Because of prejudice, he misunderstood and hurt the villain, and later was framed by his illegitimate younger brother and became impoverished.

After waking up from his dream, he looked at the innocent and harmless young villain in front of him and decided to change his own ending.

*

Fu Shen knew about his past long ago and had been plotting for many years for this reason.

He agreed to Tang Zhou’s harsh demands, pretended to be harmless, and in silence kept a low profile.

The original plan was to turn around and leave naturally after the deed was done.

But unexpectedly, after one night, this person seemed to have changed.

Peeled off the coat of indifference, there was actually a piece of small sugar cake inside.

Fu Shen was born with a sweet tooth, and after having a taste, he couldn’t let go.

- Description from Novelupdates

After a well-lived life on Earth, Kael never expected anything more than death and the sweet embrace of sleep and darkness.But fate had other plans. He was reborn in another world similar to Earth, where he grew up until he was ten, at which point his memories from his past life were reawakened.He was an old man trapped in a boy's body, but the mixture of the child's memories with his own made him feel more middle-aged than old.A few days later, the world he was in ascended into the realm of war, the battleground of all living beings. Kael was among the few awakened who had the chance to become the ultimate god of existence, based on the orbs of different paths presented before him.Kael was faced with three choices:Orb of ChaosOrb of NothingnessOrb of Void(Choosing any will make you undergo a trial that will change your very existence. Please choose wisely.)While in shock by these options and seriously pondering which one to choose, an unexpected event occurred.(Error detected... A new option has been created)(Be the wielder of the three — Chaos, Void, and Nothingness)(Answer picked by host, transporting...)Kael was in shock as he fell into darkness, with one swirling thought in his mind:“I didn't even pick any.”

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