In the MCU/Marvel with the Omnitrix/Ultimatrix - Chapter 42: Spiderman

Reincarnated as a baby who was in his mother’s womb for a hundred years, the moment Lin Xuan was born, the whole world was shocked.

Gu MingYue is absolutely done with being the cannon fodder side character of a novel… To think that she, born with beauty and status, had her life and her man stolen by a white lotus who had nothing on her! What on earth is going on!?

But everything changed after she met the one called “System”. After finding out that she was a mere cannon fodder in a novel, and that by completing various missions, she would be able to achieve what she wanted most – to be reborn into her world!

This is a story of a strikingly beautiful and poised cannon fodder, out on a mission to complete quests, and there is only one way to do so – have sex!

“The war is finally over?! Then, what am I going to do with my life?” Caedrel, a man who had spent his entire life fighting, had no idea what to do next. Fortunately, he was offered to become a teacher in the greatest academy in the world. However, he wouldn’t be a normal teacher but a spy for his country’s Emperor! Doesn’t sound too bad, right? Well, it would have been great, that is…until he learned that his class was for the most talented(weird) students in the entire world.

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