is a Japanese single-volume
manga series written and illustrated by
Yuzo Takada and serialized in
Weekly Manga Action. The manga was released as a single volume in December 1997. The story begins when genius inventor Kyusaku Natsume transplants the brain of a cat found by his son Ryunosuke on Christmas Eve, into a schoolgirl android that he created and subsequently stole from his former employer, Mishima Heavy Industries (owned by his estranged wife and Ryunosuke's mother, Akiko Natsume). The result, Nuku Nuku (also known as
Atsuko Natsume), is a
nekomusume or
cat girl. The manga was licensed by
ADV Manga and published as a single volume on August 24, 2004.