The Outer God Needs Warmth - Chapter 232: Song of the Betrayed (12)

When the Soul Plague arrived, it struck fast, transforming its victims into soulless monsters. The horde swept across the land unchecked—until the Awakened appeared. These survivors, immune to the plague, turned the tide of war into a bloody stalemate. But while the front lines held, the plague continued to spread and the horde only grew in number.Desperate for reinforcements, the World Government began conducting controlled infections of its able-bodied citizens to produce more Awakened. Hill was one of the conscripts. After going through a harrowing trial induced by the plague, his life was torn apart and remade: he emerged Awakened, endowed with strange new powers—but also bound by a dark curse that resides deep within his own soul.As Hill learns to wield his abilities alongside fellow survivors, he uncovers unsettling truths about the plague’s true nature and the hidden price of becoming one of humanity’s last line of defense.

Even after knowing what came next....I still accepted.A deal with the devil herself.A devil, in the form of a goddess.I accepted a life that I knew wouldn't end well, a life that was worse off than the very curel one I already lived.But I still choose to do it.I chose to become the villain.

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

Sam Sanderson is envied by many for his job, however he himself didn't seem to like it much.

Due to his expertise in nanotechnology he was tasked with monitoring the state the Valkyries, humanity's strongest weapons who all just happen to be made into gorgeous females.

Forbidden from even touching any of them, Sam spends his days in agony watching flowers he couldn't hope to touch. However one day all of that seemed to change.