I think the list of idols needs correcting to read as:
Yuzuha Hongo, Miyabi Yamaoka, Miku Tanaka, Moe Sugimoto, Miharu Nara, Kairi Sato, Miyu Fujisaki, Yuha Kitamura, Minami Hori, Himeka Araya, Sumipon, Rumika Fukuda, Sayaka Tomaru, Moeka Sasaki, Kanon Matsushima, Yurina Gyoten, Mariya Nagao