MTL - The Divine Nine-Dragon Cauldron - Chapter 9 Save people trouble

As a virtuous wife, does it include tolerating his cousin, enduring his concubines, bearing his mother?

If you will not let me live freely, why would I let you live in satisfaction?

Did fate let women time-travel so she could learn the three morals and four virtues?

Rather than act like a coward and live, it would be better to live in satisfaction and die.

- Description from Novelupdates

Jin, a hardcore gamer who still lives with his mom at the age of 24. He could never hold down a steady job since graduating, his girlfriend since high school dumped him for his best friend and he's constantly getting beat up by a group of local gang members. His dad left him and his mom when he became rich from the lottery and got a new family, one free of debt and burdens as he called it. His mom works 3 jobs to keep everything from falling apart, except for herself slowly. One day on his way home with the very first and new fully immersive VRMMORPG called Realm of Myths and Legends or RML for short, he died from a hit and run car accident. RML was advertised as the worlds first fully immersive VRMMORPG, allowing for players with skill sets in the real world, like sword training, martial arts, archery or reaction time, to benefit in the game itself! Though Jin died and at that moment a soul from another world crossed over into his body and inherited his memories. The man known as Izroth once hailed as the greatest cultivator in the seven realms, soul reincarnates into the modern world year 20xx in the body of Jin.

Chang An is a sub-beast who, despite having the talent for the sword, did not have the constitution to support it. And his savior, Hua Yi, is a beastman on the run for his life.

This is a story about how two once innocent children had to grow up in such a cruel beastman world.

- 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?