Pet centers on a world where the human mind remains a mystery despite endless research. Unknown to the public, a small number of people can dive deep into another person's psyche, manipulate memories, and alter perception so completely that reality itself becomes unreliable. Hiroki, Tsukasa, and Satoru are among those gifted with this power, and they use it to commit crimes under the orders of their leader, Katsuragi. Their work sends them into the most dangerous territory possible: the inner world of other people.
Within this hidden underworld, people with these abilities are feared and exploited as "pets," tools for coercion, intimidation, and murder. As Hiroki, Tsukasa, and Satoru destroy their assigned targets, they also struggle to keep their own minds and memories safe from collapse, outside control, and the damage left by every intrusion. Figures such as Hayashi, Long, and Jin move through the same shadowy network, where loyalty is fragile and every relationship can be manipulated. Pet turns psychic crime into a tense psychological thriller in which the greatest danger is not only what can be done to others, but what can be taken from oneself.
