[No System] [No Harem] [Everyone Has Their Wits About Them] [Overwhelming Power]
A small-town boy obtains a mysterious pearl and reveals his talent, only to have his enemies threaten his parents' lives to force him into submission. Driven into a corner with nowhere left to turn, he offers his blood to the demonic pearl, transforms into a demon, and slays his foes. One man! One sword! He'll take on the whole world with his own body!!!
