A new Japanese release, 2020-21 Topps UEFA Champions League Japan Edition offers an exclusive UCL set. The product is sold through the Topps Japan site. Per the listing (via Google Translate), "No international shipment is accepted now."
A more basic version of 2020-21 Topps Chrome UEFA, 2020-21 Topps UEFA Champions League Japan Edition highlights notable UCL names, including Cristiano Ronaldo and Lionel Messi, alongside top Japanese players.
In this case, the 100-card base set features standard paper cards. However, the parallels offer the Chrome finish with the Mojo design.
Another key difference is that the backs contain Japanese text.
Beyond that, 2020-21 Topps UEFA Champions League Japan Edition contains no inserts or autographs.