Sweet Magic (スイートマジック) is a Vocaloid pop track from the collaborative duo ろん×Junky, Junky handling composition, arrangement, and lyrics, with Lon (ろん) providing the vocals. The song originally appeared on Junky's 2012 compilation album "Rink ～Junky×鏡音リン THE BEST～", a collection that showcases his extensive work with the VOCALOID voicebank Kagamine Rin. It arrived in maimai PLUS at launch on December 13, 2012, as part of the niconico & Vocaloid genre category, making it one of the earlier Vocaloid additions to the series. Lyrically, the song spins a confectionery metaphor: the singer masks genuine romantic feelings behind a "sweet magic" of desserts and treats, mixing bitter and sour notes into an otherwise sugary exterior. The bright 123 BPM arrangement and Lon's crisp vocal delivery give the track a light, playful energy that matches its kitchen-theme wordplay. Over maimai's decade-plus lifespan, Sweet Magic's charts were recalibrated multiple times as difficulty standards shifted. In the DX era, the chart lineup settled at Lv4 Basic, Lv7 Advanced, Lv10+ Expert, and Lv12 Master. The Expert chart was designed by 譜面-100号, while the Master chart was crafted by ニャイン (Nyain). Notably, an unused Re:Master chart was found in the game data spanning from maimai ORANGE PLUS through FiNALE, though it was never officially released to players. Sweet Magic also crossed into other SEGA rhythm games, CHUNITHM STAR (January 2018) and オンゲキ SUMMER PLUS (July 2020), and received two special UTAGE (宴) party charts: a 撫 chart added in maimai MiLK (February 2018) and a 甘 DX chart added in maimai DX PRiSM PLUS (March 2025), each with designer names that playfully reference the song's sweet theme.