A seasonal spin on the franchise, THE IDOLM@STER MASTER SPECIAL WINTER brings together 三浦あずさ、四条貴音、如月千早、星井美希、高槻やよい、双海亜美／真美 for warm idol pop and J-pop arrangements that alternate between intimate piano ballads and bright, synth-tinged dance-pop. Issued on Columbia Music Entertainment, the release leans on layered harmonies, sleighbell accents and theater-trained vocal phrasing—it’s perfect for winter playlists and has modest streaming traction (6 listens from 3 users).