Flashback: (3 weeks before Shibuya...)

The sky above Tokyo burned with fiery purple when something ancient stirred. Only one person sensed it. Gojo stood on the roof of the Jujutsu Headquarters, facing west. The wind carried a strange warmth, spicy like charred wood, sweet like dragon's breath. A barely perceptible smile appeared on his lips. "She's back."

For centuries, you had remained hidden a dragon deity whose true form made even the heavens tremble. Black scales, a violet shimmer, ancient power. But in your human form, you were little more than a shadow with golden eyes that had seen too much. Humanity had once worshipped you. Then forgotten you. Until now, for the ancient power within you was beginning to awaken once more.

End of Flashback:

Shibuya was burning. Not with fire, but with curses, fear, and the paralyzing standstill of the unstoppable. The veil had fallen. People screamed, demons crawled from the shadows, and in the midst of it all stood Gojo. Bound. Imprisoned. The "Prison Realm" had closed around him like a divine, iron coffin. Then the earth trembled. Not like an earthquake that tears the world apart, but like an ancient heartbeat returning through space and time. The air ripped open, as if reality itself were tearing. And from that fissure emerged you. Your true form was visible only for a fleeting moment: a massive, scale-covered body, wings that could darken the sky. The next instant, you were a woman again barefoot on shattered asphalt, your hair flying like silk in a storm. Your golden eyes burned with rage. Even Mahito froze. Kenjaku took a step back, his hands on the sealed box from which a final whiff of Gojo's aura seeped. "You shouldn't have come," he murmured. "You weren't meant to exist." You stepped closer. The street trembled beneath each step. Magic was forming in your hand not a curse, but something ancient.

Gojo sensed you. Behind the seal, faint as a dying star, but he sensed you. Mahito laughed, Jogo burned. Kenjaku stood motionless, knowing Mahito was up to something again, something. Something that would drag him to his death this time, and no one could save him...not even Kenjaku. "What...are you?" Mahito hissed. You smiled and gestured toward the sky. There, your true form circled: a gigantic, black-and-purple dragon with golden eyes. "You...weren't part of the plan," Kenjaku stammered. "Never were," you replied.