>>23379113
They only show the blurb for each "episodes," but around Z they made a Juggler photoshoots that involving an alien girl named Biranki that mentioned in one of the episodes.
Biranki is portrayed by Hikari Kuroki, same actress as Yuka from Z, so Juggler got reminded of Biranki when he met Yuka years after.

With next year being Orb 10th anniversary, I wonder if they'll explore the 10 Episodes Plan again.