I have Immortality In The Cultivation World - Chapter 551 - 308: Return to the Cold Palace_2

Long Fei, a cross-timer and doujin, is an otaku who traveled to another world. In the original world, he was an otaku fan of Gundam and military science fiction.

He died in an accident and was reincarnated into another world. The Gundam works he had read before his death and the techniques in various military novels could be brought to another world.

How would he use the Gundam that Long Fei created? What waves can be caused in this different world?

- Description from novelbuddy

Noir, third son of a “beggar noble,” lost his job and was at a loss, but fortune struck just as he was contemplating becoming an adventurer.

He defied the heavens once, he returns to do it again.In a past life, he was Xie Wuchen, the heretic god of cultivation. A rebel who shattered divine law, betrayed the celestial order, and vanished in a blaze of infamy.Now, he is Lan—a crippled prince in a world ruled by mana and noble bloodlines. His mana core is broken. His name is a joke. His existence, forgotten.Until the rain falls.And something awakens:[Forbidden Arts Synchronization: Complete][Elapsed Time: 16 years, 10 months, 15 days][Memory Restoration in Progress…]The soul of Heaven’s greatest traitor has returned with a hunger far greater than revenge.And he plans to do more than ascend the magical hierarchy. He will annihilate it.This time, he will forge an empire—not of nobles or spellcasters, but something this new world have never known—Cultivators, trained in arts banned by gods and feared by men.Those who mocked him will kneel.Those who ruled by birthright will burn.And the heavens, once again, will tremble.Magic rules this world.But cultivation will conquer it.

Cha Myung-jun, a sergeant who neared the end of his military service, found himself confined in the Ministry of National Defense’s bas**ent for over three decades due to his newly awakened abilities, just before the outbreak of war. Spending thirty years as the world’s most formidable blacksmith, wielding nothing but hammers, he skillfully outwits the watchful eyes of the Ministry of Defense to serve the war effort and reset the course of time. Now given a second chance at life, can he lead a successful campaign to avert humanity’s downfall and secure its salvation?