Tsuki ga Michibiku Isekai Douchuu - Prologue 1: This is the beginning of the autumn sky

Henry is a university graduate who happens to be working as a hotel receptionist, though with big dreams of being more than that. All these change for good one day when he finds a way of cracking a very sophisticated technological system, which ultimately empowers him to formulate and develop leading-edge inventions from his bedroom.With a determined mind not only to conquer the market but also to move out of his gray life, Henry starts into his journey of fame by introducing a number of radical technologies that capture the interest of the whole world and hold it.

Today, I am a substitute for your fiancee. Tomorrow, I’ll become your sister-in-law!

Mu Mingtang is the substitute of the male lead’s first love. After she lost her family, she was adopted by the Jiang family and eventually became engaged to the male lead, the Prince of Jin.

Understanding very well that she was only a substitute, she removed her claws and fangs and turned herself into an imitation of the Prince of Jin’s first love. She couldn’t speak or laugh as she wished, she was prepared to live in the shadow of another woman for her entire life… until one day, the real Miss Jiang returned.

The real Miss Jiang was reborn. When she learned that she was the male love’s first love, she immediately returned to fight for her engagement and identity.

In order to please his first love, the Prince of Jin gave the substitute to the Prince of Qiyang, who had become a dying madman. She was just a low-quality fake, anyway. If she dared to anger his first love, he would turn her into a childless and powerless widow for the rest of her life.

Mu Mingtang, the target of their mockery, finally snapped: Okay, since you gave me to another man, I’ll make you bow and call me sister-in-law!

However, none of them expected the Prince of Qiyang, the God of War, to actually wake up!

—

Xie Xuanchen is the son of the late emperor. The whole world once trembled beneath his feet, but one day, for a reason unknown to even Xie Xuanchen himself, his nature suddenly changed. He became cruel and bloodthirsty, leaving his father with no choice but to pass the throne to his uncle.

Eventually, Xie Xuanchen was unable to resist the illness and fell into a coma.

When he woke up again, there was a beauty standing before his bed, looking at him in surprise. Then, for the sake of his domineering little princess, he revived his name as the God of War, reclaimed the throne, and united the world.

I once captured the world to satisfy my own ambition. Now, you are the reason for my ambition.

(Main World: Marvel)

(Current simulation order: Demon Slayer → One Piece → Bleach → Naruto → Fate → Elden Ring → Overlord → To be determined)

Rebirth

He can simulate life in any other world and gain power from it.

Before each simulation starts, there is a high probability of drawing rare talents!

…

Color talent: [World Creator]: You can change the rules of this world at will, you are immortal and the creator of the world!

Golden Talent: [Fader]: Immortal and immortal, the unblessed who was abandoned by death and immortality at the same time, the destined king!

Red talent: [Destined to draw]: When you play cards or draw a lottery, you will definitely get what you want!

Purple Talent: [I am the Empress]: You are destined to become the empress of this world, with dreadful talents, unparalleled strength, and more powerful and loyal subordinates, who will expand your territory and compete in the world for you!

…

A god-level talent is dazzling.

More importantly, these talents can be brought into the real world, and even abilities can be extracted!

“What kind of superhero is this!”

“Enjoy the beauty of another world, isn’t it fragrant!”

- Description from novelbuddy

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