Id: Invaded (stylized as I⊃:INVΛ⊃≡⊃) is a Japanese anime television series produced by NAZ, directed by Ei Aoki and written by Ōtarō Maijō. It aired from January to March 2020. A manga sequel by Yūki Kodama was serialized in Kadokawa Shoten's seinen manga magazine Young Ace from October 2019 to November 2020.
Synopsis
The story follows the investigations of Narihisago, a renowned detective now in prison, who is tasked with diving into the id wells of various serial killers. Two years prior to the current events, Narihisago's daughter Muku was brutally murdered by a serial killer, leading Narihisago's wife to commit suicide. These deaths prompted him to hunt down and murder the killer, earning him his prison sentence. He is still depressed and haunted by his wife and daughter's deaths, but also uses this as motivation to take his work seriously and help stop serial killers; however, as a result of the deaths of his family, he bears a grudge against all serial killers, which occasionally manifests as an uncontrollable urge to kill. Despite this, however, it is shown that the majority of Narihisago's colleagues have great respect for his work. Rookie field analyst Hondomachi becomes an important character during the series after having a brush with death in a serial killer case.
Events take place in a world where investigators have the power to tap into a killer's unconscious and see fragmented parts of their psyche. This is referred to as an "id well", a mental plane that can be digitally entered to collect clues regarding a killer's victims, crime scenes, and motives. As one traverses through an id well, their sights and actions appear as digital projections in the real world for investigators to analyze in real-time. Since a person's unconscious thoughts are rarely organized, everything within an id, including people and locations will appear in a fractured or symbolic state and can only be temporarily put together by someone investigating the id well.