Munitions Empire - Chapter 1137 - 1057 guessed the answer

A broken man who ended his own life finds himself reincarnated into the game he used to play. However, instead of becoming the protagonist or a powerful antagonist, fate places him in the role of a minor villain—a mere stepping stone for the protagonist in the game's first arc.

Yang Feng somehow transmigrated into a different world and received a legacy of an ‘ancient high tech’ family, which does not directly raise his power, but gives him the technology to build things which are way more advanced than the seemingly medieval world.

But to build something you need resources and energy. To receive resources you need strength. To gain strength you need knowledge. To gain knowledge you… need strength? or a background? Or maybe a fully armed army of high tech robots who aren’t afraid of death?

But is this legacy really for him to keep?

- Description from Novelupdates

The heroine is sassy, ​​decisive, not a virgin, not hypocritical, and has an online IQ.

In the end of the world Five years ago, Jin Jiang was robbed of her space ability by her husband and thrown into a crowd of zombies.

In the new life, she first stocked up on supplies at the beginning, and waited for the end of the world to come.

In this life, she wants to build her own base, wouldn’t it be nice to be the boss?

- Description from novelbuddy

“I time-traveled, and so did my dad,”Li Ping'an had already arranged everything. He had set up a solid family business for his father in the mundane world and taken care of the relationship to enter the immortal sect. Then, he was determined to tread the path of immortality, to seize his chance at becoming an immortal.But he had never imagined that on the day he attended the talent testing in the mundane world, everything would change...