A calm sliding puzzle: slide the wooden pieces to free the "golden core" trapped inside and guide it to the aurora gate.
Move the stuck wooden pieces one at a time to open a path, and guide the golden core to the exit. Enjoy the quiet sense of accomplishment the moment it clicks free.
Coming soon to the App Store. A link will be posted here once it is available.
Questions or bug reports: kumiki@tkzo.jp (Support).