The Richest Billionaire is My Accidental Husband - Chapter 79 - : The Eldest Sister is the Most Beautiful Mermaid in the World 1

In the age of the Great Liang Dynasty, the lives of the people were made convenient with steam-powered machines that run on a fuel named Violetstream Gold. Chang Geng, who lived in a small countryside village, shared a distant relationship with his mother while his stepfather was away most of the year round, and the only people he was close to were two little kids, the village teacher, and his yi fu – adoptive father. But his life was flipped upside down one day following the barbaric Man tribes’ invasion, and it turned out that his entire identity had been an illusion – not only was Chang Geng himself not the country boy he thought he was, but also his mother, his teacher, and even his beloved yi fu…

- Description from Novelupdates

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

Hu Feng, a high school student, accidentally embarked on the road of modifying the world.

Left disfigured after an unfortunate accident, Shen Lang, a doctor, has become so ugly that no one dares to look at him. This makes him decide to become a noble spirit instead and save lives along war-torn borders. He lives a lonely life, remaining single until a bomb takes his life.

At that fateful moment, he swears that if he can live again and get his handsome face back, he would use his charm to flirt with the most beautiful woman and live an extremely relaxed life.

He transmigrates to another world and in this life, he has the body of an absolutely handsome man. However, the said owner of this body is a live-in son-in-law, one who was chased out for being a useless moron, of a wealthy merchant.

In order to fulfill his goal of living an extremely relaxed life, Shen Lang finds his way to become the new son-in-law of the ‘Goddess’ of the much more influential Palace of the Earl. Yet the only way he can truly live a relaxed and enjoyable life is to eradicate all his enemies, and all those who seek to bring the Palace of the Earl down!