Kep1er

Kep1er (케플러) is a six-member multinational girl group formed through Mnet's Girls Planet 999 and managed by WAKEONE Entertainment and CJ ENM. The group debuted on January 3, 2022, with a lineup originally drawn from South Korea, China, and Japan, selected through a global online voting competition. The name Kep1er references the astronomer Johannes Kepler and his laws of planetary motion, framing the group's concept around the idea that fans are the gravitational force keeping them in orbit. That fan-orbit dynamic, called the "Kep1er System," has been a consistent thread across the group's concept work since debut. Kep1er released their debut mini album First Impact on January 3, 2022, followed by a run of releases that built their domestic and international profile: Galileo (2022), DOUBLAST (2022), Wing Wing (2023), and the full-length album Kep1going On (June 2024). In November 2024, the group returned with TIPI-TAP, their first comeback as a six-member lineup following lineup changes earlier that year. Title track "TIPI-TAP" marked a more mature sonic direction and drew strong streaming numbers domestically and in Japan. In March 2026, founding member Seo Youngeun departed at the conclusion of her contract. The remaining six members, Choi Yu-jin, Shen Xiaoting, Kim Chae-hyun, Kim Da-yeon, Ezaki Hikaru, and Huening Bahiyyih, confirmed they would continue activities under WAKEONE.