Monsters Invade, and I Evolve into a Mecha

A quick note before you read: this isn’t a mecha-versus-mecha story. It’s mecha versus demon beasts, and mechas don’t appear right from the start. This book is not only thrilling, but also makes sense.

The book is also known as Mecha Warriors. Features: gigantic demon beasts, an invincible protagonist, a calm and clever lead, and decisive, ruthless action.

X particles invade Blue Star. Demon beasts emerge, technology fails, and humanity is driven back step by step. Just as the human race faces extinction, spirit warriors appear.

Every spirit warrior can choose their own path of evolution. It might be a giant cannon capable of laying waste to the world, or a cold weapon that is swift, sharp, and perfect for assassination. There are no weakest spirit weapons, only the weakest people.

He Lei, an intelligent engineer who transmigrated here, chooses a path of his own.

Using the knowledge from his past life as a foundation, he evolves an intelligent combat body with spirit energy and cultivates his mental power through science.

When a city is besieged by countless monsters and teeters on the brink of destruction, he dons his mecha and charges into battle, taking on thousands alone. He slays a king-class monster, kills countless demon beasts, and saves the entire city.

The world is stunned. So spirit warriors can fight at both long and close range?