Kochi castle is considered an important castle in Japan, as it is the only castle where the castle tower and nearly all of the central structure remain intact. Its stone walls glow across the whole 500 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 Resonating Tree and Autonomous Resonating Life in the Ninomaru and Sannomaru ruins area, glowing brightly and producing a colour tone that resonates out.