MTL - Garbage Skills Become the Strongest In the Ninja World - Chapter 345 Destroying Heaven and Jedi Sword Twenty-three

When Su Jiu dies on her eighteenth birthday, she transmigrates into a novel about painful love and becomes an adorable four-year-old child.

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

This is a story about a badass,

“Can you be useful to me?”

“I… I can be…”

The first time they met, she knelt trembling before him, begging for shelter. The slave caught his interest, and he brought her back to his palace.

She could’ve never imagined that in one night she’d go from a spoiled little slave princess of a defeated kingdom, to becoming a powerful prince’s pet.

He kept her by his side… spoiled her, cared for her, loved her, and gave her meticulous care and high status. Whatever she wished… she could do so under his name.

But, she angered him and chose to run away. He captured her within a day.

“Don’t forget, my little dearest, everything I have given you can be taken back…”

In a spur of anger, she hit him, her feeble hands striking against the flesh of his cheek. Gnashing her teeth in anger, she said, “Do you have the ability to take my child back?!”

- Description from Novelupdates