A 1-minute music video that does more worldbuilding than most full series manage in 12 episodes. Rella's direction treats Miku's vocals like a character moving through a landscape instead of singing over one, and kz's production architecture feels like the geography itself is alive. The song structure becomes a map; you watch it twice and suddenly understand what the world was trying to tell you the first time.

Crossroad is a one-episode music video directed by Rella. It accompanies the song Crossroad, written by kz and TAKU INOUE, with Hatsune Miku providing the vocals. Its genre labels are adventure and fantasy, so viewers can expect a short piece set to the track with that flavor rather than a conventional episodic story.