"Ninin Sankyaku (二人三脚 Three-Legged Race)" is Misono's tenth solo single released on June 25, 2008. The title song was used as the theme song for the video game Tales of Symphonia: Dawn of the New World (similarly to how Misono's 4th single Lovely Cat's Eye was used for Tales of the Tempest). "Ninin Sankyaku", as well as a handful of other songs would go on to be included on Misono's mini-album Tales with Misono: Best alongside other Misono and Day After Tomorrow songs used to promote the series.