Wakayama Ayano, Sera Misaki, Sagawa Miyu, Hosoi Yurika and Takahashi Runa graduated from X21 on March 31st.
As a result, Inuzuka Shiori, Iijima Mika, Kadogaki Hikaru, Takamura Yuka, Kawaguchi Yurina and Nakazato Megumu have just joined the idol group as 2nd generation members. The girls were introduced on April 1st on the TV variety show Go! Oscar! X21 (Go!オスカル!X21).