"Cat's Eye" is a manga series centered around the Kisugi sisters—Rui, Hitomi, and Ai—who operate as a trio of skilled art thieves. By day, they run a café called Cat's Eye, but by night, they execute elaborate heists to recover stolen artworks originally collected by their missing father, Michael Heinz, a renowned art collector. The sisters leave behind their signature calling card, a drawing of a cat's eye, at each crime scene, which becomes a symbol of their identity and mission.

The narrative unfolds as the sisters target specific pieces of art, each holding personal significance due to their connection to their father. Their activities attract the attention of the police, particularly Toshio Utsumi, a determined investigator who becomes increasingly obsessed with capturing the thieves. Complicating matters is the fact that Hitomi, the middle sister, is romantically involved with Utsumi, creating a tension-filled dynamic as she balances her loyalty to her family with her feelings for him.

The series blends elements of action, mystery, and romance, with each heist presenting unique challenges that test the sisters' ingenuity and teamwork. Their motivations are deeply personal, driven by a desire to uncover the truth about their father's disappearance and the circumstances surrounding his art collection. As the story progresses, the sisters uncover clues that gradually reveal a larger conspiracy tied to their father's past, adding layers of intrigue to their quest.

The characters are defined by their distinct personalities and roles within the group. Rui, the eldest, is the mastermind behind the heists, combining strategic thinking with a calm demeanor. Hitomi, the most athletic and daring, often takes on the riskiest tasks during their operations. Ai, the youngest, provides technical expertise and comic relief, balancing the group's dynamic with her lightheartedness. Together, they form a cohesive unit, each contributing to the success of their missions while navigating the emotional complexities of their personal lives.

"Cat's Eye" is notable for its blend of high-stakes action and character-driven drama, with the sisters' relationships and individual growth playing a central role in the narrative. The series explores themes of family, loyalty, and justice, set against the backdrop of a thrilling cat-and-mouse game between the thieves and the authorities. The interplay between the sisters' dual lives as café owners and art thieves, along with the unresolved mystery of their father's fate, drives the story forward, creating a compelling and multifaceted narrative.