Castle of Black Iron - Chapter 1: Arrival of Black Iron Age

Gong Yu, a three-good student who entered the unknown world for no reason, became a sick and poor little Highness who disguised herself as a man.

In line with the principle of hard work and progress, I work hard to be a two-headed grass and survive in a mixed court.

However, she accidentally picked up the handkerchief of the future queen and sister, and returned it with the good character of picking up gold.

The result was a series of such rumors.

Since the love is compatible, the two are in love, and they are secretly in love, why not choose another day to get married?

Gong Yu herself expressed panic, but the queen sister actually acquiesced.

Content label: A special liking for fate encounters through time and space sweet text
Search keywords: Protagonist: “Gong Yu”, “Dai Ruyan” ┃ Supporting role: “A lot” ┃ Others: “A lot”

- Description from novelbuddy

“Your fate has been decided. You knew this when you made that decision years ago. The only way out for your family is for your son to marry the Daughter of Destiny. Only her fate is strong enough to save your lineage,” the priest said.“Then we must find this Daughter of Destiny,” the king declared.After committing many evil deeds, a dying king tries to save his family from the wrath of heaven.He had defied heaven once, and he was confident he could do it again. Anastasia, the unflavoured daughter of Duke Thompson, becomes the prey whose good fortune will be used to save the royal family.Would he succeed?? Find out!!

“This twisted world needs to be reset. That's what V2 is for!”-------------------------------------------------------------Waking up only to find that she's reincarnated into a world very reminiscing of a game that she used to play, Yuki is suddenly thrust into a worldwide conflict. To ensure the longevity of her newfound motherland, Yuki will have no choice but to flip this war upside down. If only to finally has some closure for past life also.So buckle up, strap your helmet tight, and keep your rifle loaded and on safe. This is not your bog-standard story about overpowered characters on a battlefield, no. This is a story about warfare in all its bloodied glory, the leader that calls the shot, the soldiers that execute them, and the nation that's backing them up. And along the way, sprinkle those a healthy dose of beautiful maidens, lily/futa romances, and build a harem.This is not gonna be a quick and decisive run, no. We're in this one for the long haul. Hail, Ironblood!

Science and Technology Library: The supreme state of science is theology; an accidental rescue, let Chen Mo get a technology library that collects endless technology, the story begins…

- Description from xbiquge translation