My Online Girlfriend Is The Nine Heaven Divine Phoenix - Chapter 370 - Respective Methods (1)   

Yang Yang starved to death once, so after rebirth, he had only one wish: food and clothing.

However, in the blink of an eye, Yang Yang heard his uncle say that he had to cut open his stomach to take out the eggs.

Yang Yang: … I advise you to be kind.

In order to protect himself, Yang Yang found out the identity of the father from the birth center, and he embarked on a road of no return.

Yang Yang: Duke, your family is in my hand.

A young unmarried duke: ? ? ?

- Description from Novelupdates

This is a rigorous multiverse cultivation novel!Watch the protagonist, Zhong Shenxiu, as he wanders through various realms, pursues longevity, explodes the system, and becomes the master of the multiverse.Here, there are modern martial arts, classical cultivation, jianghu of Cthulhu, horror worlds, steam punk…Infinite worlds, infinite possibilities, all in the 'Lord Shenxiu'!

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

When a person dies, they either die light as a feather (aka unimportant) or heavy as Mt. Tai (aka very important).