[Updated irregularly!]
An unexpected global downpour blotted out the sun. Falling with the rain was an unknown virus.
It was named the X-Class Zombie Virus.
Anyone who came into contact with rain during the global downpour became infected with the X-Class virus.
Its effects were highly unstable. A high fever was the only visible sign that it was damaging human DNA.
So the virus outbreak caught everyone off guard.
Three days later, reports began coming in from around the world of people suffering cardiac arrest after a high fever. They opened their eyes again, but remembered only blood and flesh.
Fortunately, a small number of people survived the fever and gained something else from the X-Class virus: supernatural abilities.
In the second year of the apocalypse, a prophet at the Southern Base foretold: "After the long night, dawn will break. Morning light will be born from the most vile malice in the world, sprouting from a body that should have rotted away. Light is born in darkness, and will ultimately bring new life."
And so the Southern Base formed the Dawn Squad to search for "Morning Light."
A year later, as the zombies knelt in submission to welcome their king, a young man opened his eyes in a forest piled high with rotting corpses.
A top with a sharpshooter ability who never misses x a bottom who is half-human, half-zombie, and immensely powerful
Mutual pining. Two blockheads.
"One day, a great fire will burn away the darkness and part the clouds."
"And you are the only light in this chaotic world."
[Since you've made it this far, I'll say it again: updates are irregular! If you dropped the story because of the irregular updates, there's no need to tell me. Thanks.]
Theme: Don't be afraid when night falls. Keep going until you reach the end of the night. There, you'll see the most brilliant sunlight.