Tanya, now in her third life after being reincarnated by the mysterious Being X, finds herself as an orphan once again. Alongside her in the orphanage is a young boy named Orpheus, who evolves from a frightened child into an international pop sensation. But as Tanya watches his rise to fame, the world around them begins to crumble. An apocalypse is unfolding, and the universe itself is revealed to be more than it seems—somehow, it's a cell in a much larger cosmic body, and the invasion has begun. The Gaean System awakens in people, granting them abilities tied to the will of Gaea, the Earth goddess, whose presence is in everything. But in the midst of this chaos, Tanya knows one thing for sure—she has always been the best at surviving. A soldier at heart, she's hardened by lifetimes of war and conflict, and now, she must use every ounce of her combat prowess and strategic mind to navigate a world torn apart by forces beyond human understanding.