Only I Level Up As A Beast Slayer

Some Years ago, portal doors began to appear all over the places. These portal doors led to dungeons, caves... filled with monsterous beasts. They wreaked havoc, making population drop drastically.



Fortunately, some humans also began to awake abilities, enabling them to deal with these monsters. These special humans are called Slayers.



Allen looses his father who dies in one of the S-class missions. He never intended to be a beast slayer but after seeing how brutal his father was killed in the S-class dungeon, he makes up his mind to become one of the slayers to avenge the death of his father.



But that was not all. During his journey, he discovers that his father was not killed by a monster as claimed. Now, it is his duty as the son to find out who killed his father and why they did it.



From a weak E-class slayer, Allen fights to become the strongest S-class slayer..

and his dream seems to be forth coming.