天国と地獄 (Tengoku to Jigoku, "Heaven and Hell") is a maimai cover of the iconic can-can melody from Jacques Offenbach's 1858 operetta Orpheus in the Underworld (Orphée aux enfers). Performed by the Japanese group スーパーラバーズ (Super Lovers), credited here with the playful subtitle "赤ちゃんはどこからくるの？" ("Where Do Babies Come From?"), the track arrived on the very first day of the original maimai arcade cabinet, November 7, 2012. Among early maimai songs, 天国と地獄 stands out for its Expert chart, which packs 128 Break notes, an extraordinary density for its era. That count remained the highest of any Expert chart in the game for roughly ten years, until it was finally surpassed by ＃狂った民族２ PRAVARGYAZOOQA in a later version. The Master chart, designed by ニャイン (Nyain), carries a difficulty constant of 13.4 and features a relatively high Slide-note count (50) that demands fluid hand movement at 175 BPM. Over the game's version history, every difficulty of this song has seen multiple level adjustments as maimai's rating system evolved, a testament to how long the track has remained in active rotation across all regions (Japan, International, USA, and China).