Diabolical Invincible Me

A hero always tries. No matter what. Even if he falters. Even if it means he might fail. But the heroes here? They don't try. They don't care. They're not heroes. They're monsters. Monsters get put down. Maybe that makes me diabolical. Don't care. Time for us to clean house. Did I say us? I believe I did! Narutoxharem. Title inspired by the song! Upgraded to M in later chapters.