天使光輪 (Tenshi Kourin) brings together two heavyweight forces from the Japanese rhythm-game and doujin music scenes: REDALiCE, a founding figure of the HARDCORE TANO*C label known for aggressive hardcore and trance productions, and cosMo＠暴走P, whose hyper-speed compositions and vocaloid anthems (including some of the fastest songs in the Bemani and maimai series) have made him a household name among rhythm game players. The track was added to maimai DX BUDDiES on November 10, 2023, through the WACCA collaboration area (WACCAちほー), bridging SEGA's arcade hit with Marvelous's now-retired rhythm game WACCA. Clocking in at a relentless 203 BPM, the song lives up to both artists' reputations for high-energy, high-density sound, a wall of tight synth work, fast drum programming, and the kind of melodic intensity that makes each chart feel like a sprint. The song's title translates to "Angel Halo," though the in-game achievement title for earning SS rank on Expert, "地獄の扉は開かれた。" ("The gates of hell have been opened."), suggests a more devilish experience awaits players. The Expert chart (designed by サファ太) and Master chart (designed by じゃこレモン) both demand precise execution across the full five-note-type DX palette, with the Master chart packing over 1,000 notes into its 14.4 difficulty constant.