Koko Abunai is the older of the two sisters who headline the original CGI anime series. She and her sister Mika lead a double life as glamorous actresses and secret agents. Their primary mission is to protect a powerful artifact known as the Boobie Stone, a jewel that grants eternal beauty and youth to its keeper. Koko is depicted with vibrant red hair and a wardrobe that emphasizes her fashionable, image‑conscious persona. Her personality is defined by self‑assurance, a taste for luxury, and an overt reliance on her physical allure. She is motivated by a desire to preserve her own youthful beauty and the privileged lifestyle she enjoys, which aligns with the continued safety of the Boobie Stone. Within the narrative, Koko serves as one of the two main protagonists and drives much of the action alongside her sister. The most important relationship in her life is with Mika, and the two operate as a close‑knit team, supporting each other during missions and sharing a bond that mixes genuine affection with occasional playful rivalry. On the opposing side, she faces the villainous Madam Hokuruda and her assistant Paparazzi Matsumoto, who repeatedly attempt to steal the Boobie Stone. Koko’s character remains largely consistent throughout the brief series, with no significant arc or transformation; her traits and priorities stay constant in service of the show’s gag‑driven comedy. Her notable abilities stem from the Boobie Stone, which grants her what are called Boobie Powers, enabling her to overcome threats in exaggerated, whimsical ways. She also uses her celebrity status and charms to manipulate situations.