Tokitō Muichiro, who was a Kasumi pillar, was quick to kill and had an indifferent temperament. Everyone in the world knew that he had a ruthless nature. But no one knows that that coldness is the brain's self-protection to hide all the past in order to resist the pain of bereavement.
In the thick fog that lingers in the mountains, the remnants of his brother Tokiro Ichiro turn into a ethereal shadow and return to the world. The cracks in the broken and dusty memory quietly opened, and the forgotten warmth of childhood, the bloody parting on the rainy night, and the bonds that were too late to tell, poured into Muichiro's desolate heart little by little.
In the past, he only lived to kill ghosts. He didn't know care, sorrow or joy. Now fragments of old dreams come back again and again, and past love and regrets come back with a vengeance. In the cruel and chaotic world of fighting evil ghosts, while carrying Zhu's mission and rushing to the battlefield, he followed the traces of fog and picked up the family ties he had lost.
Is it trapped in the obsession of memories, or is it to complete self-salvation in this world? Under the glow of the sky, the forgotten boy will find his own complete life.
Concept: group portrait, friendship