While the first episode had few voice actors listed because the rest of the girls had yet to “wake up”, Tae remains un-awoken, and this seems to be for an unknown reason in regards to revealing her voice actress.
After episode 2 aired, however, many fans in Japan and abroad started to notice something curious about the list of voice actors: The Legendary Tae Yamada’s voice actress is simply listed as “???”!
2) Tae’s voice actress is a famous or legendary voice actress, as a newer or younger voice actress wouldn’t benefit from being a secret.