The Spirited Daughter-in-law and the Mountain Man - Chapter 420 - : 420 deliver food

I am Master Siwei, and I speak for arcane arts.
This is an era of heroes and heroines.
This is an era of great changes.
In the end, it will be an arcane era opened by me.

- Description from Novelupdates

Yang Dongxu found himself reborn and returned to 1979, a time when China was full of opportunities. The Soviet Union or the superpower seems to be doing something.

It seems that Hong Kong’s entertainment industry is not prosperous enough. The NBA is not hot enough, it seems to do something…

- Description from Qidian

She roused from a pool of blood, vowing to exact retribution on those who had harmed her.

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?