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In the shinobi world of Naruto, on the fateful night the Nine-Tails rampages through Konoha's streets, a lean, sharp-eyed teenager named Uchiha Hengchuan is walking home — calmly — with a grocery bag.
    Hengchuan is no ordinary Uchiha. He is a transmigrator: a soul reborn from the modern world into the ninja universe he once only knew as a story. With the quiet detachment of someone who has lived one life already and lost everything twice over, he views Konoha, the Uchiha clan, and the grand shinobi drama unfolding around him as someone else's business. He knows the plot. He knows who lives, who dies, and who saves the world. It has nothing to do with him.
    From birth, a mysterious System has granted him one randomly drawn ability per year. At age one, his very first draw was catastrophic good luck: an SS-Rank Sage Body — the same tier as the Sage of Six Paths and the Ōtsutsuki clan. The result? His body endlessly absorbs natural energy far beyond his control, and the moment he tries to mold chakra, it detonates. He has already leveled Konoha's ninja academy twice, earned permanent expulsion before ever graduating, and become the village's most feared — and avoided — resident. The locals call him Konoha's Second Sun. He calls it an inconvenience.
    Armed with a Mangekyo Sharingan, all five chakra natures, monstrous physical strength, and a body harder than a tailed beast, Hengchuan wants only one thing: peace and quiet. But when the Nine-Tails bursts into the village streets, he finds himself dragged in anyway — ending up riding the beast's skull, delivering iron-fisted blows to its face, and casually slapping the scheming village elder Danzo across a ruined street, all while complaining nobody will leave him alone.
    As the great shinobi saga unfolds — the Fourth Hokage's sacrifice, the rise of the prophesied child, the rot festering beneath Konoha's surface — Uchiha Hengchuan remains stubbornly apart: too powerful to be ignored, too indifferent to be moved, and far too blunt to play politics. But in a world of clan conspiracies, tailed-beast catastrophes, and destiny calling from every direction, can even the most apathetic walking catastrophe truly stay uninvolved forever?