"Sweet Magic" is a song composed by Junky with two official versions, the one sang by Lon, which was uploaded to niconico on April 2, 2011, and the other sang by Kagamine Rin. Both versions are included in the album Rink. Rin's version of Sweet Magic was featured in the video game Project mirai 2, as well as Future Tone. Her version remains exclusive to the two games and the album Rink.