Magical Flavor is the designated theme song of maimai MiLK, the arcade rhythm game's 2017 iteration marking a new era for the series. Composed by the prolific Vocaloid producer DECO*27 (Kosuke Terayama) and sung by Tia, the track stands apart from the typical high-energy rhythm-game fare with its relaxed 98 BPM, an unusually slow tempo that gives it a breezy, almost lounge-pop character. The arrangement was handled by emon (Tes.), with a music video produced by magarikado and jacket illustration by Shirogane Hina. Lyrically, the song paints a flirtatious café scene built around wordplay and a playful push-and-pull between the two voices, fitting the "MiLK" branding that permeated the version's dairy-themed aesthetic. The song debuted on December 14, 2017, as a Survival Course exclusive, players could only hear it within a randomized course of历代theme songs. After the course period ended on January 22, 2018, it became unlockable by spending five Cheese (MiLK's in-game currency), and finally became available by default when MiLK PLUS launched in June 2018. Standard charts were designed by Tamagodoufu (玉子豆腐) for Expert and Happii (はっぴー) for Master, with the Master chart carrying a 13.3 difficulty constant. Nearly eight years later, in September 2025, Magical Flavor received DX charts as part of maimai でらっくす CiRCLE, initially unlockable through Circle Festa Season 1 at 20,000 FP. The DX Expert chart was designed by Safata (サファ太) and the DX Master by Kyomurin (きょむりん), rated at a 13.2 constant.