One Planet for Everyone! Building Science and Technology Civilization at the Beginning - Chapter 129: The advent of the steam engine! Upgraded version of vibranium!

The human race is fending off the assault of the thaids, strange monsters evolved by animals occupying most of the earth's surface.

Because of the monsters, society has evolved into one based on individual fighting prowess; Erik is an abandoned young boy living in such society with the most useless of the powers.

Everything changes when his father returns home, bringing something he would have never expected.

[DOWNLOADING INFORMATION FROM THE HOST -GENERAL KNOWLEDGE- IN PROGRESS]

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[DOWNLOAD COMPLETE]

[ALL SYSTEMS READY]

[WELCOME TO THE BIOLOGICAL SUPERCOMPUTER SYSTEM, HOST ERIK ROMANO]

After a shocking reincarnation, our hero opens her eyes to a new (and messy) world the last thing she remembers is reading Lady Viper’s Vow, a dark fantasy novel about a cruel, misunderstood villainess and her path of doom. But when our protagonist finds herself reborn right in the heart of an attack, she’s moments away from a second, way-too-soon death. Just as she’s about to face the end, a mysterious “system” pops up with a single mission: Level Up or Die Trying. It’s bossy, snarky, and her new best friend. As she levels up into a borderline-cheater powerhouse, she discovers her fate isn’t to be a hero, a princess, or even a sorceress, but to protect the one person no one ever expected her to side with: the villainess herself.

Office worker Leon is reincarnated into a particularly punishing dating sim video game, where women reign supreme and only beautiful men have a seat at the table. But Leon has a secret weapon: he remembers everything from his past life, which includes a complete playthrough of the very game in which he is now trapped. Watch Leon spark a revolution to change this new world in order to fulfill his ultimate desire…of living a quiet, easy life in the countryside!

Died while saving his dear friend and cursing the arrogant general, Leo gets reincarnated into a world ravaged by magical beasts.Here, strength speaks for everything, and the weak are killed at the whims of the strong. Leo awakens as the lowest-tier Beast Master. Just as he was thinking he would again end up under the command of some stupid general who was the reason for his death last time, he received a gift from a mysterious entity.[Primordial Beast Dominion system]Now, surrounded by people who see him as a weakling, his journey to grow the strongest has begun.Where everyone is beating their head to make their beast grow and unlock their potential, Leo uses the system to break his limiter and grow fast and surprisingly strong.With dual talent, a broken system and a yandere sister, he embarks on the journey to rise at the top of the food chain.