During the day, the three Katsugi sisters are the proud owners of the Cat's Eyes Café; but at night, Hitomi, Rui and Ai become the most wanted thieves in town! After sending a preliminary business card to the police, warning them of what they plan to swipe next, the girls rob the most precious pieces of art from well-guarded museums and secured private collections. The sisters, however, do not steal for money; everything they steal belonged to their father. By collecting his items, the girls are hoping to find clues that will help explain his vanishing in 1945. However, on the other hand, the clumsy Inspector Toshio Utsumi is on a mission to stop the Katsugi sisters; what he didn’t plan for was the fact that that his fiancée is one of them...