I Became A Vampire Demon
Humans were living peacefully on Earth for millions and millions of years until the day unknown monsters who called themselves Sulckers, invaded them from beyond space. They were fast, ruthless, and cruel monsters ready to claim earth realm for themselves. Humans were being slaughtered mercilessly by the seconds and civilization came crumbling in the face of the invaders.
However, just when humans were on the verge of going extinct and nonexistent, a heaven-sent phenomenon occurred.
A small group of humans with awoken special abilities came to light and shared their abilities to the world. Teleportation, fire manipulation, water manipulation, monstrous strength that could move mountains; humans had finally gained the power to fight back. With the combined effort of the small group of humans, the Sulckers were pushed back to their planet, and humanity once again regained control over their planet. Though the battle ended there, the war was not.
This war had created many orphans, and among them, Erix had lost everything, even his parents at a tender age. And the only thing he had received from their death was a pale-looking necklace. He was bullied every day at school because of how weak and abilityless he was.
However, once the necklace was finally activated, Erix was granted a system, and his whole life was turned around.
He completed quest after quest and became more powerful, until one day the system gave him a weird quest he wasn’t sure he could complete.
[New quest received]
[Control your uncontrollable thirst for human blood. Abstain from human blood, but during this time your HP would keep decreasing by -1HP/1 hour. Quest will be marked complete once you have lost all your HP]