DRAGONLADY is a landmark track in the maimai rhythm game series, notable for being the first BMS (Be-Music Source) original song ever added to the franchise. Composed and arranged by Nankumo under the circle name CUBE3, the song originated from the doujin BMS scene, specifically as the top-rated entry in THE BMS OF FIGHTERS 2009 (BOF2009), a major annual BMS song contest. Its victory there established DRAGONLADY as one of the most celebrated BMS compositions of its era, and its inclusion in maimai GreeN PLUS (released February 26, 2014) marked a significant cross-pollination between the Japanese doujin music scene and Sega's arcade rhythm game ecosystem. Musically, DRAGONLADY is a high-energy happy hardcore track clocking in at 150 BPM with a runtime of 1:29. Its bright, euphoric synthesizer melodies and driving beatline embody the HAPPY genre tag assigned to it in the BMS contest. The song carries no lyrics, letting the instrumental composition and the rapid-fire melody lines speak for themselves. The accompanying movie was produced by Seiichi Itagaki (Cube3), whose visual work complements the track's energetic pulse. Within maimai, DRAGONLADY's chart suite has evolved across multiple version updates. Its MASTER chart (level 13+, constant 13.9) was designed by チャン@DP皆伝 and stands out for its unusual note composition: 609 Tap notes with zero Hold notes, a design quirk that forces players to rely almost entirely on single-note density rather than sustained holds or slides. The EXPERT chart (level 12+, constant 12.8) by 譜面-100号 features a hefty 95 Slide notes, creating a very different play feel from its MASTER counterpart. Over the years, the song has received difficulty revisions across DX versions, settling at its current structure in the PRiSM era. A special UTAGE (宴) chart titled TATERENLADY also appeared beginning in maimai MURASAKi, offering a hidden alternative arrangement for advanced play.