The Legendary Mechanic (WN) - Chapter 1453: What? The World Tree Called?!

The Celestial Express is a train that goes from one galaxy to the next, picking up passengers along the way.Its Navigator, the one who drives it through the stars, is a god who can grant those passengers wishes.Jax arrives on the Celestial Express with no memories but a single wish—to save someone. After learning what the Navigator is capable of, he decides to go find him.To find the Navigator, he must go through TEN different Carriages, all of which contain a world of their own.And, he must do it with a restriction called Single Spell Sorcerer.

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates

In a world of monstrous pirates and a corrupt World Government, a new power is rising within the Marines: “Black Hair” Roya. Reborn with a unique ability and a burning ambition, he climbs the ranks with shocking speed, leaving a trail of both fear and admiration.He inspires loyalty, yet manipulates everyone around him. He upholds justice, yet his methods are anything but just. He is a master strategist, a deadly fighter, and a charmer of powerful women.But what is his ultimate goal? Is he a savior who will reform the corrupt Marines from within, or a ruthless tyrant who will forge a new world order in his own image? The answer lies hidden in a sea of blood, ambition, and broken rules.---Get ready for your daily dose of One Piece: I'm Destined to Be the Son-in-Law King! ^_^ New chapters will be unleashed every day.Let's see how many chapters I can manage each day! Your support (and reviews!) keep me going! ^_^Enjoying this story? Be sure to check out my other translation projects too:- Naruto Paradise: An Evil Uchiha's Rise- Young Master, Please Become Hokage!This is a translation, I'm not the authorTranslator: Boundless_Beacon

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?