Three sisters, Rui, Hitomi, and Ai Kisugi, run the Cat's Eye Cafe across from the police station. Unknown to the police, though, these sisters are also notorious cat-burglars also known as "Cat's Eye". Their boldness (they leave a calling card prior to each caper) is surpassed only by their skill. Complicating the matter even further, one of the detectives in charge of the Cat's Eye case is Hitomi's boyfriend Toshi. But these girls don't steal for money. All the works they steal are the work of one man--their father, who they seek to locate after he vanished under mysterious circumstances.
After Cat's Eye pull a heist and evade Toshi's efforts to capture them yet again, Kacho gives him an ultimatum. With his career as a police officer at stake, Toshi vows to put romance and marriage on hold until he apprehends Cat's Eye. Even though Hitomi sympathizes with Toshio's predicament and is affected by it, to get back all of their father's art collection is the only way for the Kisugi sisters to figure out the mystery of his disappearance.