Ayumi says the details of the episode and the dancers looking backwards are still a secret. The two of them practiced at an undisclosed location for now and rest of the H!P dance members will get together for a complete performance. Ayumi really wants to teach the dance to the other members as soon as possible.

https://ameblo.jp/morningmusume-10ki/en ... 97248.html
https://ameblo.jp/beyooooonds/entry-12442803281.html

https://twitter.com/dancech_tv/status/1 ... 1546558464