Set in the Meiji era. A beautiful female thief, Cat's Eye, causes a commotion at night in Tokyo. The three sisters Hitomi, Rui and Ai, who run the cafe Cat's Eye, are the true identity of the thief. One day, a girl in a wheelchair, Shiori, and her butler, Todo, appear at Café Cat's Eye. They have just returned from abroad, so what is the purpose of their visit to Café Cat's Eye...?
At the same time, a mysterious thief, Hawk's Claw, suddenly appears at a fancy restaurant in Asakusa, which Cat's Eye has stolen from. After saving Cat's Eye in a pinch, Hawk's Claw leaves with a meaningful remark...
One day, the three sisters are invited by Shiori and Todo to visit their mansion, where they find a painting by Michael Heinz that they have been searching for, and are surprised by the coincidence. What is the purpose of Shiori and Todo? Who exactly is Hawk's Claw...?