My World Is All about You - Chapter 66 - Difficult to Fly (2)_1

A single distrustful phone call to the authorities led Ling Ke, who had crossed over to the eve of the Third Honkai Eruption, to endure years of torment as a lab rat.By now, the Crimson Herrscher had already “transcended,” Kiana was with Anti-Entropy, Mei was with World Serpent, and Bronya had long since reunited with Seele...As for Ling Ke, he had become the Herrscher of Dominance, commanding a thousand puppets.“From this moment on, I will exact my revenge upon this world!”The once ordinary Chinese man who had crossed over into this world, now completely consumed by darkness, revealed a terrifying, twisted grin.A forewarning—this is not a happy story.

their example, leading to continuous warfare! However, the aboriginal people of this otherworld who have been blinded by the aesthetics of violence! Rightnow! And in the future! Let me teach you what kind of mecha represents the romance of a man! Let me show you what kind of propulsion is the iron torrent! Let me instruct you what kind of weapon is the deterrence for peace (implied by “nuclear” here)! Let me! Teach you! What exactly is the air-to-ground cluster offensive and the all-round air, sea, and land strike!! Gentlemen! I, indeed, love war! But what I love even more is to stop war with war and bring about a prosperous future where the whole world is unified for thousands of generations! Unite all nations and subdue all races! When the whole world is united as one, it will last forever...

The main character is reborn as a character from a game he played in his previous life. This character falls into ruin along with the villainess, spending the last of their years together. A man named Kururi Helan.

A failed investor from 2017 got drunk and woke up in the 1980s. China is just opening up, and the economy is blooming. There is also the dissolution of the Soviet Union, the bursting of the Dot-com bubble and other financial crisis. He used his knowledge of the future and slowly build up his empire.

- Description from novelupdates