Game characters come to life because of a bug?! Blossom, the ancient-style girl with an ancient mindset; Cthylla, the mature girl who comes from a mysterious world; Gumi, an idol of the Meow Country, Gumi; II, the mischievous, petite magical girl, and No.7, the AI-powered agent who loves money… A group of beautiful girls appears and pesters the female game producer. Is this the beginning of a wonderful harem life? No, this is the beginning of a chaotic cohabitation life.