In the neon city where humans and "shadow tribes" coexist, detective Shen Yan, who can see "memory afterimages", always meets a mysterious white-haired man at the crime scene. The other party calls himself Lin Shen, a "boundary keeper" who walks in the gap between the two worlds. His fingertips can condense with frost, but when Shen Yan is in danger, he always wraps his trembling shoulders with a coat that smells of cedar.
A bizarre "shadow eclipse case" binds the two people: the victim's shadow will break away from the body and turn into the appearance of the perpetrator, and all clues point to the "Star Orbit Laboratory" ten years ago. During the investigation, Shen Yan discovered that he could always see broken memories in Lin Shen's eyes - a pure white laboratory, a bloody star path map, and a young man shouting "A Shen".
When Lin Shen's ice melted for Shen Yan for the first time, and when Shen Yan's "afterimage" ability illuminated Lin Shen's tenderness that had been hidden for ten years, they realized that those deliberate distances and attempts to pretend to be indifferent were just disguises for fear of losing again. From tit-for-tat confrontation to solving puzzles side by side, from hand warmers hidden in gun holsters to scarves wrapped in the warmth of two people, this guardianship across two realms has already caused the star track to deflect for them.
Finally, when the conspiracy was revealed and the truth of the laboratory was exposed in the moonlight, Lin Shen protected Shen Yan behind him, and the frost on his fingertips condensed into a shield: "I said, I will guard your shadow." Shen Yan held his hand tightly, and the warmth of the palm came through the gloves: "Not only your shadow, I want your past and future."
Concept: Bonds have nothing to do with race, love can cross boundaries