Be a Good Boy and Marry Me - Chapter 24 - : Have you tamed Mo Shiting so quickly?!

Upon waking up from the dream, Josie traveled from the 21st century to Chicago in 1943, becoming a poor boy wandering the streets.

World War II? For Josie, who is still underage, it is too far away.

As an orphan, how he can survive in this age is the most important thing.

Fortunately, he has a plane trading system. In this era, being a master of time and space can make a good life if you think about it.

However, a few months later, Josie, whose life had just improved a little, looked at Captain America, who was singing and dancing with a group of girls on the stage of the war fundraising benefit performance, and fell silent.

It’s over, Barbie Q is over.

This is Marvel!

- 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?