Reborn as a sentient sword, our protagonist joins a young girl on a journey to exact justice on those who prey upon the weak.

A nameless sword wakes up to discover he has been reincarnated from his former life as a human. With his power of telekinesis, he moves around this new world, acquiring several skills and abilities. When the sword comes upon a forest filled with monsters, he meets a young girl fleeing from a beast. Grabbing the sword, the girl easily defeats the monster. After introducing herself as Fran, she names the sword "Shishou" and officially becomes his wielder. The two set out to become adventurers, but unfortunately for Fran, she is a member of the Black Cat Tribe-a Beastkin group with a bad reputation. No member of this tribe has ever evolved into a mightier beast, but Fran plans to be the first and achieve her parents' dream. As Shishou promises to remain her sword until she attains her goal, they form an unstoppable partnership of impressive strength.—MAL Rewrite

The Black Cats tribe suffers the dreadful fate of being hunted, enslaved, and slain. Fran, a twelve-year-old girl of the persecuted race, yearns for vengeance for the crimes committed against her people. She fantasizes about a brighter future, one for which she is willing to get her hands filthy. A meeting with a talking sword, a reborn man yearning for a beautiful wielder, proves to be the turning point in her fate. The young Fran plans to recover her kin's glory and honor with the help of her new comrade, chopping down all her foes along the way. She begins on a quest with her amazing sword and unwavering resolve.—Bilibili TV

When you're killed in one reality and wake up as a sentient sword in a world where magic is real, what else can you do with your steely new existence except become an adventurer? Even though his shiny new form can levitate itself around, our slicing implement without a name also craves a wielder: a mighty warrior with whom to partner, explore and slay monsters. Instead, he gets Fran, a young cat girl, former slave, and trouble magnet who names him Teacher. It's as odd a pairing as they come, and whether they'll be sharp enough to make the cut in the realm of high adventure will be anyone's guess in REINCARNATED AS A SWORD.—Sentai Filmworks

After our protagonist is reborn in another world as a sentient sword, he encounters a girl fleeing a band of evil slavers. Young Fran takes him up to defend herself, and together they'll liberate those in need and exact justice on the cruel of heart.—Amazon Prime Video