MTL - Mister Li, the Heart Bandit - Chapter 42 Come brother

Li Yubing and Tang Xue were deskmates throughout the whole six years of primary school. After being plagued by Tang Xue for the entirety of this period, Li Yubing saw his chance and broke free with his secondary school selection. With no contact for yet another six years, who knew that Tang Xue and Li Yubing would one day meet again in university…

- Description from Novelupdates

After dying alone in a mental institution, Fang Junrong discovered that she was the evil mother-in-law in a prominent family doting novel. Her daughter-in-law was the female lead who was loved by all.

In the novel, the female lead was kind and nice, and the male lead loved her so much that he’d die for her in a heartbeat.

Her future father-in-law doted on her and treated her better than his own daughter.

Fang Junrong, the evil mother-in-law, was the only one who didn’t care for her. She had gotten the evil character’s script and wanted to set the female lead up every chance that she got and finally landed herself in the mental institution.

After she was rebirthed and facing her son who wanted her blessings, Fang Junrong tore up the script. Whoever wanted the role of the evil mother-in-law could have it! She was going to get a divorce and take half of the money, then she’d figure out where she wanted to go from there!

In a modern world where cultivators need a place to cultivate or vent their boredom, there are private businesses that set up instance dungeons with the aid of technology and cultivation magic to enable cultivators to train and commoners to experience the life of cultivation. They are called dungeon suppliers.
Xie Jin's one and only dream was to be a dungeon supplier and when his only relative passed away, the relative's inheritance gave him a plot of land and surprisingly, a 'System' Module which the relative had previously used.
With the help of the system, Xie Jin decided to pursue his dream of becoming the number one dungeon supplier.

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?