About This Trend
プロジェクトセカイ (Project Sekai) is a popular Japanese mobile rhythm game featuring virtual singer Hatsune Miku.
According to Sega and various Japanese news outlets, the game has been trending due to recent announcements, including a collaboration with Tamagotchi, a rock album release, and an upcoming movie adaptation, "劇場版プロセカ" (Gekijouban Project Sekai), set to premiere in Dolby Cinema on August 29th. A news article from Yahoo! News Japan reported on the movie's premiere and special after-live event.