I'm not sure when this was list published, but Yurina's solo PB did better than Rika's Abyuu. Yurina's popularity may come from that.
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Cutie Party (Hello! Project Night) will have a change:
As of october, the MCs will change from Yajima Maimi and Umeda Erika to Yajima Maimi, Suzuki Airi, and Okai Chisato.