"Tokyo Ghoul:re" is the sequel to the original "Tokyo Ghoul" series, continuing the story in a world where ghouls, creatures that resemble humans but survive by consuming human flesh, coexist uneasily with society. The narrative picks up two years after the events of the first series, with the Commission of Counter Ghoul (CCG) intensifying its efforts to eradicate ghouls. The CCG has established a specialized unit called the Quinx Squad, composed of humans who have undergone a surgical procedure to implant ghoul-like abilities, allowing them to combat ghouls more effectively.

The protagonist, Haise Sasaki, is a high-ranking investigator leading the Quinx Squad. Haise is a mysterious figure with no memory of his past, later revealed to be the reincarnated form of Ken Kaneki, the protagonist of the original series. Haise struggles with fragmented memories and a dual identity, as his suppressed ghoul instincts occasionally resurface, causing internal conflict. The Quinx Squad, consisting of members like Urie Kuki, Ginshi Shirazu, Saiko Yonebayashi, and Tooru Mutsuki, each grapple with their own personal challenges and the ethical implications of their ghoul-like powers.

As the story progresses, Haise begins to uncover fragments of his past as Ken Kaneki, leading to a gradual reawakening of his former identity. This transformation is catalyzed by encounters with familiar faces from the original series, including Touka Kirishima and the ghoul organization known as Aogiri Tree. The narrative explores themes of identity, morality, and the blurred lines between humans and ghouls, as Haise/Kaneki navigates his dual existence and the escalating conflict between the CCG and ghoul factions.

The plot intensifies as the CCG launches a large-scale operation to eliminate Aogiri Tree, leading to significant casualties on both sides. The Quinx Squad members face personal growth and tragedy, with some succumbing to their ghoul instincts and others questioning their loyalty to the CCG. The series also delves into the origins of ghouls and the experiments conducted by the CCG, revealing deeper layers of corruption and conspiracy within the organization.

"Tokyo Ghoul:re" culminates in a climactic battle that forces Haise/Kaneki to fully embrace his identity as the One-Eyed King, a figure prophesied to unite ghouls and challenge the oppressive systems governing their existence. The series concludes with a resolution to the conflict, though the future remains uncertain for both humans and ghouls. Throughout its run, "Tokyo Ghoul:re" maintains a focus on character development, moral ambiguity, and the consequences of power, providing a continuation and expansion of the themes introduced in the original series.