SAI ²Rium

SAI²Rium is a Japanese female idol group formed in 2022 under caSTORY Inc. The group officially debuted on August 20, 2022. The members are Asahina Kaho, Amatsuka Sana, Yagi Momoka, Takanashi Moka, Tsukino Ririka, Saotome Yuyu, and Kusunoki Koharu. In March 2023, SAI²Rium achieved a major milestone by winning the NEXT IDOL GRANDPRIX 2023, significantly boosting their visibility in the competitive idol scene. The group experienced its first major lineup change in early 2024, when members Mashiro Ria and Nanase Ran announced their graduation and agency departure, effective March 30, 2024. A new set of members was revealed shortly after and introduced on April 5, 2024, during a relaunch concert at Shibuya WOMB. Later that year, they performed their 3rd solo concert at Ebisu LIQUIDROOM on May 29. The group expanded again on January 17, 2025, welcoming two new members and kicking off a fresh chapter with another showcase live. In 2025, they released their spirited new song "Fure! Fure! Sairiumu", continuing to cement their status as a dynamic and evolving force in the idol world.

Please enable Javascript to view this page competely.