Bannou Bunka Neko-Musume DASH!

A girl with no memory arrives and begins living with the Natsume family, taking on the identity of Atsuko Higuchi. She is kind, attractive, and skilled in cooking, bringing joy to Ryunosuke, a 14-year-old boy. Soon after her arrival in Maneki City, strange events begin to occur—experimental machines malfunction, fighter jets fly at low altitudes, and the city suffers damage. In each case, a mysterious girl is seen at the location of the incident.