Sirius459

In a world where adventurers—human warriors possessing supernatural abilities—must fight deadly monsters to protect humanity from certain destruction, a mere level 1 adventurer finds himself in a seemingly endless struggle for survival. One day, he was thrown by his party into the core of the dungeon and suddenly a mysterious program called the System selected him as a player, giving him a unique ability to increase his strength. This was something that other adventurers couldn't do, because adventurers' abilities were fixed after they awakened. He then embarks on a journey as he fights against all kinds of enemies, both humans and monsters, to discover the secret of the dungeon and the true source of his power.

Vampires, Creatures that only exist in books and movies but, that all changed since the great tragedy 50 years ago. 90 percent of the human population has partially turned into vampires and those who fail to adapt are turned into ghouls which are predatory creatures that are thirsty for fresh blood. Now humans build great walls to protect them from threats that were originally only fictitious now become real threats. Five years ago the walls of mankind were breached by the vampires and caused many victims to fall, Luke who witnessed his family being massacred and saw his younger sister kidnapped by the vampires. Luke joins an army of vampire hunters and is determined to go on an expedition beyond the walls into vampire territory to save his sister and eradicate the vampires from this world.