There was a report on the news conference (on 11/28) for the McDonald's Gurakoro commercial on the MaiDigiTV youtube channel. This report was around 8 minutes.

There was a short animated commercial for the McDonald's gratin croquettes burger (gurakoro), and the voices and songs were done by Taketatsu Ayana, Aimi, and Maeda Atsuko (idol).

At the press conference, Ayana was wearing a scarf because her character has a scarf in the anime. Aimi wore glasses because her character wore glasses.

After a short talk, the three sang the song together, "gurakoro song".