The Real Rich Daughter is a Future Genius Scientist - Chapter 441 - : A New Puzzle

In his past incarnation, Lu Xuan was the youngest Celestial Lord that the universe has ever seen!
An accidental rebirth brought him back to a thousand years before, where the Earth had just begun its spiritual reawakening. When he stepped onto the way of cultivation for a second time, he swore to rewrite all injustices suffered in his past life, and defeat all enemies that dare stand in his way!
Let invincibility be his cultivation and the path he treads. In this life, it is his destiny to be invincible!

Reborn into the world of Yugioh, it's natural if my goal is to become the best duelist!

Theodore Griffith was a master of Reality. He understood the parallel universe in the form of another reality. He was aware that someone’s wish, story, or pure imagination could give birth to a new reality just like his own. Hence, he planned to find the creator of his reality by roaming among the realities. This time, he entered a new reality connected to several other realities. However, what made him certain the most was that this reality was connected to the person who created his reality. He knew that fact because of the ability he gained in this world. He could actually see people’s comments, allowing him to realize that his entire life and reality were born from a story. “Hehe. You have made a mistake in making me realize this. With the readers on my back, I can force you, the author, to make a plot for us to meet.” Theo said while giggling. “That’s why I’m counting on you guys.”

In the legends that were told, ten thousand years ago the twelve demon kings wreaked havoc upon the world, almost completely destroying it. Ten thousand years later, the late arriving Bella discovered that she had been screwed over by her reincarnation, the ranks of the Saviors are already filled and she has to change teams in order to pass the days. Having her gender changed into a beautiful girl… she endured that, not being able to join the righteous side and obtain cheat abilities… she endured, but what she could not endure, was that the world that she had transmigrated to was toxic beyond belief. No one here does their rightful jobs properly, be they heroes, demon kings, or creator gods… in fact, Bella felt as if they all had also started with the wrong faction!