25 various authors have come together and made a collaboration that was done under the challenge of organizing it under 168 hours (7 Nights) ! This is the last collaboration of the limited-timed series I will be doing. • 一晩合作: https://youtu.be/rSbbyggy7ds • 三晩合作: https://youtu.be/0VjkHezI6oM • NicoNico Link: https://www.nicovideo.jp/watch/sm45371843 • Spreadsheet: https://shorturl.at/RekYz • Medley: https://www.nicovideo.jp/watch/sm37881091