Built in 1607, Fukuoka Castle is also known as the Stone Castle. Its stone walls glow across the whole 630 meters.
The light of the walls is autonomous, it shines brightly and then fades, as if breathing slowly.

The light of the walls joins together with the Resonating Tree and Autonomous Resonating Life in the Honmaru ruins area, glowing brightly and producing a colour tone that resonates out.