Description:

In a world where awakened beings called “Hunters” must battle deadly monsters to protect humanity, Sung Jinwoo, nicknamed “the weakest hunter of all mankind,” finds himself in a constant struggle for survival. One day, after a brutal encounter in an overpowered dungeon wipes out his party and threatens to end his life, a mysterious System chooses him as its sole player: Jinwoo has been granted the rare opportunity to level up his abilities, possibly beyond any known limits. Follow Jinwoo’s journey as he takes on ever-stronger enemies, both human and monster, to discover the secrets deep within the dungeons and the ultimate extent of his powers. (Source: Tappytoon) Note: Chapter count includes a prologue and 21 side stories.

Description:

A man who's crazy about martial arts, the Mad Demon Lee JaHa. After stealing the Demonic Cult Leader's Heavenly Jade, he fell down a cliff while being pursued. After thinking everything was over, he opened his eyes, having returned back to a time he was an inn helper who was looked down on by everyone... He had been falsely accused and the inn was in ruins. The Mad Demon who returned to being an inn help. Will he go mad once again? Or will his enemies go mad instead? Source: MU