MTL - Crossing the Happy Daughter - Chapter 92 go up the mountain

On the wedding night, she was tied to his bed.

After I defeated the Demon King, I was executed for false accusations by the heroines.When I came back to life, this was the first thing they said.“I know it’s shameless, but would you help us one more time? Without you, the world will be destroyed.”…Would you help them if you were in my shoes?

“Welcome aboard the Dimensional Rift game exclusive train. This train will depart from the Level E Departure Station and head to Level D stations. Please ensure your safety while boarding in an orderly manner and abide by the train rules.”“The train rules are as follows:”“1. Do not bring non-game items onto the train. (Underwear is the exception)”“2. Consumption is mandatory. (All train staff are unpaid volunteers)”“3. Do not turn on the lights after they are out. (Except for those who are exceptionally talented and courageous)”“Additionally, the train encourages various leisure activities such as sneak attacks, brawling, and predation. Players are free to choose.”“We wish you a pleasant journey.”

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