is a song written and recorded by Japanese-American singer-songwriter Ai. Released on May 9, 2017, via EMI Records, the song served as the lead single for Ai's eleventh studio album, Wa to Yo.
Recorded originally for the second season of the Japanese drama show Emergency Interrogation Room, Ai teased an excerpt of the track in a video announcing Wa to Yo in April 2017. "Justice Will Prevail at Last" was released digitally on May 9, 2017. Aries Moross served as the art director for the accompanying lyric video.
Musically, "Justice Will Prevail at Last" is a J-pop and electropop song. Multiple critics have described that the song heavily incorporates sounds similar to chiptune music found in early video games. Traditional Japanese instruments such as the taiko are also used within the song. Lyrically, the track is about confronting the evil in the world.
Credits adapted from Wa to Yo liner notes and Tidal.