星見草 (Hoshimisou) is an original composition created for maimai でらっくす FESTiVAL, written and arranged by Masanori Akita (秋田真典). Released on February 3, 2023, as part of the Heaven Area 6 (天界ちほー6) unlockable track set, the song carries a bittersweet fantasy narrative tied to the area's storyline, a fragment of lore about the goddess Renus fading into light and leaving the young Dian with a cryptic quest to gather the four tribes. The jacket artwork and in-game movie were produced by the artist えーれ (e-re), whose visual direction amplifies the track's ethereal tone. At 164 BPM with a runtime of 2:22, Hoshimisou sits as a mid-tempo original piece with no lyrics. Its chart lineup spans four DX difficulties, with the Master chart (level 13+, difficulty constant 13.8) designed by Redarrow standing out for its deliberate omission of Touch notes, a notable choice for a でらっくす-era 13+ chart, relying instead on 104 Slide notes and dense Tap patterns to deliver its challenge. The Expert chart (level 11) was designed by 翠楼屋 (Suirouya), whose layouts are known for readable but energetic structures. Originally gated behind a 400 km distance milestone in Heaven Area 6 during FESTiVAL, Hoshimisou became available by default starting with maimai でらっくす BUDDiES, and rolled out to Asian and Chinese region versions on staggered dates through 2023 and 2024.