Maou-sama no Machizukuri! ~Saikyou no Danjon wa Kindai Toshi~ - Volume 1 Chapter 11

The protagonist of the collapse of the three former civilizations is Dr. Mei. What is the end of logic, the strongest brain, super intelligence, this is the story of the strongest scientist of Honkai with knowledge of the moon becoming the god of science!

- Description from novelbuddy

Wang Li thought dying would be the end of his troubles. Instead, it was just the beginning.After his untimely death, he finds himself reborn in a world of powerful cultivators, ancient sects, and deadly rivalries. With a mysterious Primordial Rebirth System, he has a second chance to reach the peak of cultivation. There's just one problem…All of his ex-girlfriends from his past life are here too!From the cold and ruthless Mu Yuechan, the Ice Demoness of the Frozen Lotus Sect, to the fiery and unpredictable Lin Ruoyan, the Scorching Sun Saintess, and even the cunning and seductive Feng Yuling, the Fox Demoness of the Thousand Illusions Pavilion—each of them remembers their past with Wang Li.And they all have unfinished business with him.Some want revenge. Some want redemption. Some… might even still have feelings for him.But in a world where love can be deadlier than any sword, Wang Li must navigate sect politics, ancient grudges, and divine conspiracies—all while trying to survive his vengeful, jealous, and ridiculously powerful ex-girlfriends.Can he mend broken relationships? Can he avoid being frozen, burned, or seduced to death?Or will he somehow turn this chaotic mess into the greatest cultivation harem in history?One thing’s for sure—cultivation has never been this complicated!

Zhuo Yifan was the Demon Emperor. One day, he managed to lay his hands on an ancient emperor’s book, the Nine Serenities Secret Records. As the book was coveted by many, he was targeted by experts and was even betrayed by his student.

An unnamed 34-year-old Japanese NEET is evicted from his home following his parents' death.

Upon some self-introspection, he concludes that his life was ultimately pointless.

Walking down a street he intercepts a speeding truck heading towards a group of teenagers, in an attempt to do something meaningful for once in his life he manages to pull one of them out of harm's way before getting himself in the way of the truck and dying.

Awakening in a baby's body, he realizes he has been reincarnated in a world of sword and sorcery.

He resolves to become successful in his new life, discarding his past identity for his new life as Rudeus Greyrat.