Beneath Jujutsu Tech, an ominous ritual was unfolding. In a dimly lit subterranean chamber, the air was thick with anticipation and cursed energy. The room, carved from ancient stone, was adorned with intricate sigils and runes, their power unmistakable.

At the center, venerable Old Sages stood in a solemn circle, exuding a palpable aura of power. They aimed to summon an ancient curse as old as Sukuna himself.

Among the attendees were Gojo Satoru and his students—Megumi, Yuji, and Nobara—along with other jujutsu practitioners, their faces a mix of curiosity and trepidation.

The ritual began with the Old Sages chanting in an archaic tongue, pouring their cursed energy into an artificial vessel designed to contain the curse. The vessel glowed with a sinister light, and the cursed energy within it formed a dark mass. The ancient curse spirit began to materialize, its power immense.

Gojo watched with a mixture of curiosity and caution, while his students prepared for any eventuality. The cursed spirit took shape, exuding an overwhelming aura of ancient malevolence.

As the summoning neared its climax, the Old Sages poured the last of their energy into the vessel. With a final chant, the ritual was complete. The chamber fell silent, the ancient curse summoned.