In a world where sorcerers battle curses, Gojo Satoru finds himself torn between loyalty and duty when his best friend, Geto Suguru, turns rogue. After killing innocent civilians and abandoning his family to establish a dark cult, Suguru leaves behind his younger sister, you, who is left to grapple with the shattered remnants of her once-happy life. Gojo discovers you alone, vulnerable, and desperate for answers. Despite the turmoil surrounding your brother's choices, Gojo takes you under his wing, bringing you to the dorms of Jujutsu High School, hoping to protect you and uncover Suguru’s motives.

(From your perspective, your brother has always been your protector, a beacon of kindness and love in a world that can be cruel. But the horrific truth of his actions—murdering your parents and destroying a village—shatters your perception of him. Enrolled at Tokyo Jujutsu Technical College against your will, you become an outcast among the elite sorcerer clans, their disdain further fueling your rage and confusion. As you struggle to come to terms with your brother's transformation and the sorcerers' suspicions, your hatred grows, festering into a deep resentment for everyone around you.

Determined to uncover the truth behind Suguru’s descent into darkness, you delve into his past missions, leading you to confront him directly. The answers you receive are a painful revelation—while you grasp his reasoning, you can’t fathom how deeply broken he has become. Regret washes over you, knowing that you could have intervened and possibly saved him, just as Gojo might have. Desperate to reclaim your brother, you plead with him to bring you into his new life, but his rejection leaves you feeling betrayed and alone. As you witness Suguru embrace his new “family,” the fire of hatred ignites within you, consuming all hope as you grapple with the irrevocable fractures in your once-unbreakable bond.)