Judejayden

Step into a world where science meets the unknown, where mechas clash in brutal duels, and where every Biocore holds a mystery waiting to be unraveled. 
Follow Nioh, a genius weapons designer, as he uncovers lost technology, battles biomechanical titans, and pushes the limits of power, in an intergalactic thrilling adventure

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The genre is Sci-fi. A mix of science and some myths. In a futuristic/interstellar world. 
The hero is fun, scheming and smart. 
The science and the weapon building is central to the story and well thought.

Biocores: The Legendary Weapon Designer

A few days had passed since Nioh boarded the illegal ship out of the Daewyth region. These types of ships were labeled illegal because they ignored military safety regulations, discreetly ferrying contraband, criminals, and those without proper identification.

Onboard, money was the only rule—as long as you could pay, anything was fair game.

But the real danger of these ships was their unregulated flight paths. Unlike legal transports, which were protected by the army's Aerial Protection Division, these vessels had to chart unpredictable routes, leaving them vulnerable to biocore attacks in the open sky.

In just a few days, they had already encountered six rogue biocore flocks. Fortunately, the pilot's skill and quick evasive maneuvers had kept them unscathed—so far.

Nioh had counted five passengers on board, including himself, alongside a three-man crew:

Boat to Xerath