A sword without a name awakens, realizing it has been reborn from its previous existence as a human. Using telekinetic power, it navigates this fresh realm, learning multiple skills and talents. While traversing a monster‑laden forest, it encounters a young woman fleeing a creature. She seizes the blade and swiftly vanquishes the beast. Introducing herself as Fran, she christens the sword 'Shishou' and officially takes it in hand.
Together they set out to pursue a life of adventuring, yet Fran"s affiliation with the notorious Black Cat Tribe—a Beastkin clan famed for its poor reputation—poses a challenge. No member of that tribe has ever transformed into a superior beast, but Fran intends to be the first and fulfill her parents" wish. With Shishou pledging to stay by her side until she reaches that ambition, the duo becomes an indomitable force of power in the world, ready for all.