Yagami Light is an ace student with great prospects, who's bored out of his mind. One day he finds the "Death Note": a notebook from the realm of the Death Gods, with the power to kill people in any way he desires. With the Death Note in hand, Light decides to create his perfect world, without crime or criminals. However, when criminals start dropping dead one by one, the authorites send the legendary detective L to track down the killer, and a battle of wits, deception and logic ensues...
In 2027, Motoko Kusanagi is a highly skilled agent of the military that meets Daisuke Aramaki, former soldier who is currently the chief of Public Security Section 9. Their encounter sparks the assembly of an elite new unit within Section 9. This is a prequel to the Ghost in the Shell Series.
The series takes place in the near future, when it is possible to instantaneously measure and quantify a person's state of mind and personality. This information is recorded and processed, and the term "Psycho-Pass" in the anime's title refers to a standard used to measure an individual's being. The story centers around the "enforcement officer" Shinya Kōgami, who is tasked with managing crime in such a world.
Having learned the true nature of the Sybilla System, Akane Tsunemori chose to obey the system, believing in both humanity and the legal order. She's part of a new police section and spends her everyday life facing down criminals. Unbeknownst to Akane, however, a monster who will shake the system to its core is about to appear before her.