This is a story about three sisters in search of their lost father, who was a famous artist. They steal his works of art from museums/galleries to make him recognize their presence in the world. The three sisters' gang is called Cat's Eye as well as the coffee-shop they own. This coffee shop is located right in front of the police-headquarters. Hitomi, the middle sister is betrothed with the police inspector Toshio who is in charge of the investigations regarding Cat's Eye. Toshio falls in love with Hitomi as Cat's Eye too.