The game and the OVA were released simultaneously in Japan on July 27, 2018.
NBCUniversal Entertainment Japan’s official YouTube channel for anime music has started streaming a short version music video for five-member girl idol unit Luce Twinkle Wink☆’s upcoming fifth single song “Symphony.”
The pop tune is featured as the theme song for the OVA NEKOPARA Extra ~The Kittens’ First Promise~ based on NEKO WORKs’ all-age bishoujo adventure game of the same name.