All Purpose Cultural Cat Girl Nuku Nuku Dash!(万能文化猫娘DASH!)

One day Nuku Nuku dropped in and began to live with the Natsume family. Having lost her memory, Nuku Nuku assumed the identity of a beautiful girl named Atsuko Higuchi. She was so beautiful and gentle, and besides, she was such a great cook that Ryunosuke, 14, was all smiles. However, after her arrival in town, a series of mysterious incidents started to happen in Maneki City: experimental machines running haywire, roaring fighter aircraft flying low, mass destruction in the city. In every case, a mysterious girl was spotted at the scene of the incident.