Nakamu - Forgotten City of Flowing Sands

个人世界观沙之心第二张场景概念，一个被遗忘的地下之城，建立在黄沙之下躲避风暴袭击，利用流下的黄沙作为城市动力，黄沙就是这个城市的血液。
The second scene concept of Personal Worldview Sand Heart is a forgotten underground city built under yellow sand to avoid storm attacks, using the flowing yellow sand as the driving force of the city. Yellow sand is the blood of this city.