10 nen goshi no HikiNiito o Yamete Gaishutsushitara Jitaku goto Isekai ni Ten'ishiteta - Chapter 2, Part 11. Yuuji, Witnessing「Snowfall Bugs」that Notify the Arrival of Winter

Soaking in lava, sleeping in an Ancient Killing Formation;

Traversing alternative worlds in a heavy armored vehicle;

Riding a Gundam Sentinel and slaying immortals with Godzilla...

I got myself a stat system, and from then on, I only beefed up my defense!

I just can't help it, I'm afraid of pain! The Daluo Golden Immortals of other worlds are all really fierce, and all of them know super ultimate move with infinite power. They have little meetings every day to discuss how to break through my defense.

I really don't know why they're so obsessed...XD

A lifetime ago, Chu Xun was shackled and thrown in jail on false charges. For three whole years, he suffered extraodinary torment from his cellmates every day. Even though he had escaped death many times, he still died from his cellmates’ fists the day before he was to be released.

After death, Chu Xun transmigrated to a different world of cultivation, where cultivation was the one true path. Carrying the weight of his hatred, Chu Xun began to cultivate in hopes of becoming an Immortal Emperor, who could manipulate heaven and earth and travel through time. After painstaking cultivation of three thousand years, he succeeded. Then he sacrificed all his cultivation without hesitation and returned to the day before he was to be released.

This life, he wanted to find out the truth and the one behind his murder in last life. He would continue to cultivate and strengthen himself so that the tragedy would not repeat itself. He wanted to master his own destiny.

In this life, what people would Chu Xun encounter and what experience of love and hate would he have with them? What difficulties would he encounter and how would he overcome? The answer is the book.

- Description from Novelupdates

Chang’an, Jan. 14th of lunar month, Tianbao Year 3 (744AD), Tang Dynasty.

For residents of Imperial City, what awaits them when the city enjoys its dazzling brilliance and joy of the Lantern Festival is an unexpected catastrophe that’ll destroy all. Tujue (a nationality in the north of ancient China), Wolfpack, kidnapping, assassination, rampant flames that scorch all…start the gear for the doom of and the Longest Day in Chang’an.

And the only hope lies in a one-eyed convict sentenced to death and the fleeting Twelve Hours…Will Chang’an, the city of prosperity, survive the longest day ever or will it burn…

To save a doomed fantasy world, I killed the main characters, then destroyed the game world, and fell into another timeline as the academy's top seat and rival to the protagonist.Now, I'm trying to save the world and steer it towards a better ending…But I'm the final boss.