Starway

The Starway, known in Japan as the Stargate, is a location on Nova in Magical Starsign. It lies beneath Sparklin Palace, containing a transporter which links Nova and Shadra across their dimensional gap. However, it only activates when the Baklava solar system's elemental planets are in perfect alignment with the sun.

Geography
The Starway's entrance is on a floating limestone island in Glissini Caves, tethered to Sparklin Palace by a small ladder. Although the entrance appears to be a flat wall, the door leads to a fuchsia planetarium containing a mechanical replica of Baklava. This replica operates in real time, and glows when the five planets align. Beyond the planetarium is the Starway's dimensional transporter, a stage with five orbs that represent the main axis of magic, and a mandala in the very middle where users can warp between planets.

History
Several hundred million years ago, Nova and Shadra's dimensions were connected by a rift in Glissini Caves, but the collision of matter and plasma sealed it shut. Ever since then, interdimensional passage could only be achieved by gathering the planets' energy in the Starway.