Tetsuya, a corporate slave barely surviving in a soul-crushing black company, had only one source of comfort—his beloved pet cat, Tama. But one day when he came home… Tama had grown huge!? Following Tama’s instructions, he takes her to the nearest dungeon, where she effortlessly defeats the boss. With lightning-fast movement while carrying her owner, and even purrs that grant buff effects, Tama has awakened mysterious superpowers! Soon, Tetsuya finds himself rescuing a popular streamer, going viral, and gaining massive attention as his adorable yet overpowered cat becomes the star of dungeon-streaming adventures. The whole world can’t get enough of his cute, unbeatable feline!