A few feet of sunlight penetrates the thin atmosphere and reaches the ground, illuminating everything. But one day, it will perish. At the same time, humans will also die one after another. Just because the sun is the protagonist of all things... So, in his heart, who is the protagonist? Even a supporting role. . . Is there me? At least, in my heart, the protagonist is you... The world is getting colder, and everything is the opposite of what it was originally.