Another Stupid Isekai - Chapter 13

She, a 21st century mercenary queen, had crossed over into a tragically betrayed body of a waste. Waste? She will show them what it means to be a waste! Betrayed? With the Ancient Manual in her hands, she will astonish all the despicable men and cheap women!

Wait! Didn’t everyone say that she was an evil woman which everyone feared? Why is his Third Highness, full of mystery and charisma, so interested in her?

- Description from Novelupdates

Shi Qing’s task was to be a protector.

This is the story of a modern man who transmigrates to 16th-century India in a parallel world after dying to save his first crush on a date. He regresses as a lowly-ranked soldier in the camp of Hemu, the last northern Hindu king, who is fated to lose and die at the hands of the Mughals.With his modern knowledge and past experiences, the protagonist alters the course of history, forcing the Mughals to surrender and retreat beyond the Ravi River, which is in modern-day Pakistan.As a reward, he is granted trading rights and becomes the emperor’s personal attendant. Using this opportunity, he sets out to reshape the empire. By promoting private enterprise, establishing trading company, and creating opportunities for the lower communities, he begins to shift India’s economy away from the feudal system toward modern capitalism.Despite fierce opposition, these reforms not only unify the majority of Indians but also position the empire as a rising power in global commerce, transforming India into an economic force.His journey is filled with trials, including internal turmoil, political strife, and the looming threat of invasion from the Mughals in the west and the Dutch and Portuguese in the south. As the emperor’s trusted aide, the protagonist not only rescues the crumbling empire but also forges his own path, eventually claiming the title of emperor himself.Join him on this incredible journey of empire's ascension, as he explores how India could have been in the 16th century if history had taken a different course. With just one battle's result, the fate of the entire world is transformed.

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