MTL - Rebirth of the Rich and Wealthy - ~ 176, filed a lawsuit, Yue Jia turned the sky

I am Lin Fan and I’ve become a jack of all trades just because of a powerful Encyclopedia.
In the first ever competition organised for trolls, all the other contestants lost. The crowd exclaimed, “Brother, you’re so good at trolling.”
Lin Fan replied, “But I’ve never been trolling…”

Transmigrated into a cultivation world, reborn as a striking genius with extraordinary talent and a formidable lineage. But there’s a catch—he’s the villain, already pitted against the story’s invincible protagonist.So what? The hero may wield the power of fate, but this villain has a cheat system, taking every advantage with ruthless precision. Witness him defy the heavens, rewrite his destiny, and rise to unparalleled dominance!

Offered as a bride to Hades at the age of eighteen.

Pestered by evil spirits in the day, and taken advantage of by a perverted demon at night.

Pervert: “Dear, a night with you is worth more than gold.”

I leaned away as I clenched my teeth angrily: “Worth my foot!”

- Description from Novelupdates

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?