In Tokyo, the tragedy continues its course. The ghouls, mysterious beings that feed on human flesh, spread through its streets. Mixing with humans during the day, terrorizing them at nightfall. In this anguished scenario, the CCG, the only institution that investigates and resolves cases related to ghouls, entrusts a special mission to Haise Sasaki, a talented researcher with an enigmatic past. A door has been opened and the mysteries behind it will be revealed, dark days begin for Haise.