After Rebirth, The Real Young Master Began to Maintain His Health - Chapter 45

When Yuan Zhi met Song Jiyun for the first time, Song Jiyun was conspiring with her brother-in-law to take over the family business;

When Yuan Zhi met Song Jiyun for the second time, Song Jiyun was planting and framing others with her breast brother;

When Yuanzhi met Song Jiyun for the third time, Song Jiyun’s breast brother was no longer by her side, but she was winking at his good brother…

Scholars can bear it, but he can’t bear it. Yuan Zhi decided… to feed the tiger with his body, and took Song Jiyun, a demon girl!

- Description from novelbuddy

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?

Can you get used to dying? Not really.

When a particular universe was born, its seven primordial Concepts acquired an ego. Omniscient and omnipotent, they seek since to enrich their home. To do so, they plunder other universes, capture young civilizations and plagiarize ideas. Many monsters, gods, civilizations, and races are competing for the eighth throne.

Eons later, it is Earth's turn to be torn away from its Sun.

Humanity begins its integration by participating in a Tutorial. Priam has the luck and the misfortune to finish the Tutorial first. Luck because his reward is a form of pseudo-immortality. Misfortune, because as the champion of his civilization, he is transported to Elysium, the most dangerous world created by the Concepts. Nine out of ten champions lose their lives there on their first day. Fortunately for Priam, he has many lives.