Tada no Onna no Ko.

 (ただの女の子. ) was an idol group that was active from November 2016 until November 2017. With their disbandment, the final members formed PAPIPUPEPO wa Muzukashii.

Final Line-up

 * Kawashima Yuka (カワシマユカ)
 * Shirahane Yui (白羽根優衣)
 * Ichinose Haruna (一ノ瀬春奈)
 * Shinohara Nanami (篠原奈々美)

Former Members

 * Mizusawa Kaede (水沢かえで) (Left November 2016)
 * Amamiya Otoha (天宮音羽) (Left August 2017)