果ての空、僕らが見た光。 (subtitled "Brand new sky") is an original maimai song by TAKU1175 featuring vocalist 駄々子 (Dadaco), released on September 12, 2024 as part of maimai でらっくす PRiSM. It serves as the direct sequel to 星めぐり、果ての君へ。, the duo's previous collaboration from the Splash PLUS era, continuing a narrative and musical thread across maimai versions. The song appeared as the final unlockable track of the Blue Gate (青の扉) within the KALEIDXSCOPE event's Youth Area (青春エリア), positioned as the third and climactic song of that route. Its music video and jacket artwork, produced by aco and SkyStreet Stories with illustrations by 萩森じあ, are dense with visual callbacks to the Youth Area's characters and the jackets of other songs in the KALEIDXSCOPE lineup. Lyrical themes of broken reverse clocks, reunion, and gratitude ("ありがとう") weave a bittersweet narrative of hope and memory. The song notably held the longest continuous locked period of any maimai song, 553 days across three full versions, before becoming generally available in CiRCLE PLUS.