A strange A-level mission "Afterimage" allowed dream travelers Yu Ye and Liu Sang to take pictures of something that shouldn't exist - the "dream shadow" of the ancient god of war Chi You. Since then, they have become the targets of dream law enforcers, and were even warned by a mysterious monk stranded in the dream: This photo is bait, and they are already prey.
In the real Tokyo, someone is systematically "feeding" this mythical symbol; deep in the dream, a giant shadow with three heads and six arms is becoming increasingly solid. Within seventy-two hours, they must find the "Symbol Amplifier" hidden in the darkness of the city to prevent a cross-dimensional arrival.
But perhaps the deepest fear is that the superior who issued the task seems to already know everything.
