Fein is a transmigrator who finds himself in a world filled with monsters and demons. Fortunately, he has a unique ability that allows him to upgrade his talents in everything. Alongside his companions Aoi, Sofia, and Voli, he uses his newfound abilities to fight against the dangerous foes that threaten the safety of humanity.

In this world, humans and beasts alike use the powerful energy known as degu to fuel their abilities, which can strengthen their bodies and weapons. Beasts are ranked based on their rarity, with common, golden, legendary, mythical, and god-level beasts being the most powerful. However, despite their strength, the beasts are not invincible and must be carefully fought.

Fein himself can understand the laws that enabled him to gain powers such as space manipulation and the all the laws such as time, darkness, light, death, fire, etc... Space Manipulation allows him to create and control rifts in space, warp reality, and move through time. Meanwhile, Aoi has the power of ice and snow, which can freeze her enemies and create powerful blizzards. Sofia uses her power of destruction, and Voli wields the power of lightning to strike his enemies with devastating bolts of electricity.

As they face off against the dangerous demons and monsters that threaten their world, Fein and his companions must use their abilities and their wits to survive. The battles are intense and the stakes are high, as even the slightest mistake could mean the difference between victory and defeat. Will they be able to save their world and protect humanity from the dangers that lurk around every corner? Only time will tell.