MTL - One Piece: The Soul Purchasing Pirate - Chapter 841 found it

She fell into a novel.If she can find true love, then she’d be able to have a happy ending.However, after the story reached its end, what greeted her was death.And when she opened her eyes once more, she returned to the very same beginning.She fell in love yet again,But the ending was, still, death.Poison… strangulation… illness… falling… being crushed… burned alive… starved to death…As she welcomed her 117th birthday,Carynne Hare decided to become a mu*derer.

Traveling through different worlds – this is unscientific!

Get cheats – it’s science!

…

This is a simple story. An ordinary person lives in a different world, farming and raising flowers, studying unscientific science in his free time.

until the end.

- Description from novelbuddy

Claimed to be the greatest team in the history of the card film industry — “Mu Lei” is born. With even the elites of the academic world unable to decipher these cards’ structure, his powerful cards were able to unnerve even the federation, causing the greatest Card Creators and Card Fighters to grow frantic, triggering open battles and covert maneuvers among various interest groups — all behind the silhouette of Chen Mu. Although he was not the originator of the federation’s unrest, he was definitely the number one reason for continuously escalating it.