Yahshuro
A thousand years ago, during the Golden Age of Sorcery, whispers drifted through the wind of an "Unseen Sovereign"-a hidden master of infinite power who refused to participate in Ryomen Sukuna's joy of slaughter. Rejecting an era deaf to true wisdom, he chose a natural end, expecting to leave no name behind.
Now, in modern-day Tokyo, fifteen-year-old Mizuki Yuya walks among the masses, completely unnoticed. He has compressed his endless energy into his heart, vowing to live a "normal" life as a silent, unacknowledged vanguard against the dark. But as the supernatural underworld collides with reality during the cataclysmic Shibuya Incident, the Lonely Monarch must step into the breach once more.
A parallel, philosophical JJK short story exploring righteousness, spiritual warfare, and a light that refuses to go out.