Mature?It's only natural since Mai-chan is here!...Hm?After the debut of Otonashi Kotori, Hidaka Mai, and Ozaki Reiko's unit, the members of Cinderella Girls, not to mention 765 Pro were pushed down in an instant as this new group took the top spotI won't be able to look Eri in the face...The spark of a mature idol boom is here.