Death Note follows Light Yagami, a highly intelligent high-school student who discovers a mysterious black notebook known as a Death Note, dropped into the human world by the bored shinigami Ryuk. The notebook grants its user the ability to kill anyone whose name is written in it, provided the user knows the person’s face.
Light, believing he has been chosen to cleanse the world of criminals, embarks on a campaign to eliminate those he considers evil. His actions attract the attention of law enforcement agencies and a mysterious, world-renowned detective known only as L, who seeks to stop him.
The series explores moral ambiguity, justice, and the consequences of absolute power, raising questions about ethics, responsibility, and the human tendency toward corruption when given unchecked authority. The story unfolds as a psychological cat-and-mouse game between Light and L, with high stakes and unforeseen consequences for everyone involved.