Ready Study Go! 5
This was a live broadcast for the TV anime Bokutachi ha Benkyou ga Dekinai. This was a broadcast of a public recoding event.
The three seiyuu were wearing new white outfits instead of the usual school outfits.
They showed a short promo video for the upcoming second season TV anime. The characters were wearing the same outfits as the seiyuu.
Then they played some of the songs, and taught some of the dances and movements for the songs, in preparation for the upcoming live.
[seiyuu specials for TV anime on the Internet]
[anime pre-air TV specials]