I'm 90 years old and the system tells me it's time to create harem - Chapter 24: After tonight, you will definitely fall in love with me.[R18]

At the beginning of the 21st century, twelve reincarnations shattered the void and returned to their hometown.

They preach the world and reopen the space of reincarnation.

Then……

“The Republic of East Asia announced that it will fully implement a five-year spell casting and twelve-year simulation mage training policy.”

“The Republic of East Asia has announced a new change in the marriage law, making it legal to marry someone you call upon after meeting the adulthood conditions of your respective race.”

“The Republic of East Asia announced that the East China Military Region No. 1 Mobile Armor Brigade was established, and the special humanoid mecha “Gundam” officially joined the campaign.”

“Congratulations from the United Kingdom on this, the upper hero Arturia Pendragon will visit Shanghai next month”

“In the far east of Japan, the ignition of the wave engine failed, or seek energy assistance from the East Asian Republic.”

“Space cracks have been discovered in the Chernobyl region, alien creatures have ravaged the Chernobyl region, and the Russian Defense Forces have entered the battle.”

Four years after twelve reincarnators changed the world, Li Ping entered his own battlefield for the first time.

PS: Although the introduction is like this… but in fact it is written about two thorns + machine battle + movie + mythical stew…

- Description from novelbuddy

Zero, a 35-year-old mercenary, after being betrayed by one of his teammates who told his enemy about him. He chooses suicide so that he can kill his enemy and his traitor teammate. After that, he was reincarnated into the world of magic, in the body of an 18-year-old teenager with the same name as him. However, his body does not have mana or the talent for magic. But with the help of the cultivation system, he has unrivaled power in the world and has a harem of beautiful wives.

Liam was a nobody, whether it was grades or sports or appearance or social life. Not because he didn't have a brain but because his luck was just that bad. However, everything changed when a mysterious game called 'Evolution Online' was suddenly launched. The world he knew changed upside down!

There was blood, death, and carnage everywhere. While everyone from small companies and big governments scrambled to get a foothold on this mysterious video game, some people's lives turned for the better and some for the worse.

Liam, unfortunately, being the latter, still somehow ended up at the bottom of the barrel. His insignificant life was squished like an insect and his loved ones were destroyed right in front of him. In the end, he was already dead without ever having a single chance to fight back.

But his story did not end there. Liam found himself returned back to the time before everything began!

Watch as the young man who was once a nobody reaches for the pinnacle of strength and power wreaking havoc on the world that destroyed him once! This time everything will be different!

I met the male lead in prison.