In the unforgiving world of the Grand Line, Akane Kazehaya carries the ashes of her home and a burning vendetta against the World Government. Four years ago, her peaceful island of Hi-no-Kuni was annihilated by a Buster Call, ordered by the highest authorities to silence an inconvenient truth and seize ancient power it guarded – the Mythical Zoan Tenshi Tenshi no Mi, Model: Michael, the legendary Kaenken sword, and the Sunstone Heart of forbidden history. Saved from the inferno by a guilt-stricken Monkey D. Garp, Akane survived, branded by the World Government with a crippling 80 million beri bounty and the terrifying epithet, "The Divine Calamity."
Washed ashore near Foosha Village, she is found by young brothers Monkey D. Luffy and Portgas D. Ace. Under Garp's brutal, unwilling tutelage on Mt. Colubo, the three children are forged through hellish Rokushiki training. Akane finds an unlikely brotherhood with Ace and Luffy, their shared trauma – the loss of Sabo at the hands of a Celestial Dragon – binding them together in a mutual hatred for the World Government and the monstrous 'ones above' who embody its corruption.
Carrying her cursed artifacts, grappling with the terrifying potential of her awakening Devil Fruit, and armed with superhuman techniques, Akane now sails the seas years later. Not for treasure, not for freedom, but to expose the lies upon which the World Government's 'Absolute Justice' is built and tear down the rotten roots that stole her past. Her path intersects with the Straw Hats and skirts canon events, but her true war is against the architects of her tragedy, a fight against the world's perceived order, the very power that fears and hunts "The Divine Calamity