Long ago, a celestial entity aimed to destroy the planet, but Arceus bravely intervened and saved the world, though not without suffering severe injuries. The kind Damos tended to Arceus' wounds, and in gratitude, Arceus gifted Damos the Jewel of Life and promised to revive the barren Michīna. To create the precious gem, Arceus granted Damos 16 segments of its body to be returned by a specific date, but when Damos failed to do so, Arceus felt betrayed and vowed to judge humanity upon its resurrection. Years later, Satoshi, Hikari, and Takeshi journeyed to the serene town of Michīna, surrounded by stunning scenery. As they explored the ruins on a high hill overlooking a magnificent lake, a sudden storm caused mayhem. Sheena, a descendant of Damos, appeared from the ruins and beseeched Dialga to calm the chaos. Satoshi and his friends were captivated by the ruins, and Sheena shared the history of Michīna. However, the intense clash between Dialga, Palkia, and Giratina resulted in the ruination of the site, leading to the awakening of Arceus...