Tetsuya, a worn-out corporate slave working for a black company, lives each day with only his pet cat, Tama, as his emotional support. One day, he comes home to find that Tama has suddenly grown to an enormous size! Following Tama’s instructions, Tetsuya takes her to a nearby dungeon, where she effortlessly defeats the boss. She can move at incredible speed while carrying her owner and even purring seems to grant buff effects—has Tama awakened superpowers!? Before long, Tetsuya saves a popular streamer, goes viral online, and his dungeon-exploration streams become a massive hit. The world can’t stop talking about his adorable—and unbelievably powerful—pet cat!