PiKi is a Japanese idol unit formed in June 2025 under KAWAII LAB., bringing together Karen Matsumoto from FRUITS ZIPPER and Haruka Sakuraba from CUTIE STREET. Known respectively for their baby pink and pink image colors, the two had already gained popularity among fans as the duo “Parurentan” before officially launching PiKi. The duo had their first major spotlight as a pair when they graced the cover of LARME magazine’s Autumn 2024 issue (No. 062), signaling strong fan interest even before their official debut. PiKi officially debuted as part of the KAWAII LAB. collective and continues to promote the “kawaii culture” with high-energy performances, pastel visuals, and catchy idol pop tracks. In 2025, they released their debut track "Kawaii Kaiwai", which captures their colorful aesthetic and playful charm, quickly making them a fan favorite within the idol scene.