The Spirit of Sorrow

In an unknown foreign land, there is a constant war between humans and "demon ghosts". A young man from a famous family but not favored by others has experienced all kinds of things in this cruel world, including life and death, escape, betrayal, and loneliness... Bearing the infamy of evil ghosts and abandoning his soul. The soul, through the taboo method, merges with the soul of the "demon", just to protect the blue sky without the smoke of war in the heart, and the beloved person under the blue sky who always has a pure smile, who can always be accompanied by the word beauty. "When you leave, there will no longer be a blue sky in my world."