The Vengeful Villain Slayer

• Fantasy
• Shounen
• Action
• Sci-fi

• overpowered-mc
• system
• weak-to-strong
• revenge
• super-power

After witnessing the brutal murder of his foster parent and facing the imminent loss of his sister, Akina, Kazuki is consumed by a raw, unfiltered hatred. In the heart of the Tokyo Demon Realm—a chaotic wasteland where criminals thrive and laws are nonexistent—helplessness is a sentence of death. However, fate intervenes when a sinister deity grants him the unique [Villain Slayer] class. This specialized power allows Kazuki to grow stronger exclusively by eradicating evildoers, turning his grief into a lethal weapon. Armed with a jet-black scythe, he transforms from a broken boy into a merciless executioner of sinners. As he climbs the ranks of power to protect his beloved sister, Kazuki must navigate a world where morality is blurred and blood is the paid price for survival. Will he become the very monster he hunts?