The male protagonist Lu Chen is 32 years old, the leader of the action team of the Anomaly Cleanup Department, and a former quantum physics researcher. He lost his partner due to the dimensional contaminant attack in 2069 and was assimilated by the contaminant. Since then, he has joined the front line with a built-in dimension detector and a miniature anti-matter cannon in his semi-mechanical left arm. On the surface, he is a taciturn and cold-hearted machine, but in fact, he has an extremely keen empathy for information bodies, that is, ghosts. He can read the remaining emotional fluctuations of information bodies through his mechanical arm, which is similar to listening to ghosts talk. This is due to his information resonance physique after being scratched by contaminated body fragments. The cuffs of his dark gray combat uniform are always rolled up to the elbow, revealing his semi-mechanical left arm. The metal shell is engraved with anti-pollution rune-like circuits, and the black hair is mixed with a few strands of premature silver threads, which are traces of being impacted by high-dimensional information. The heroine Shen Yan is 26 years old, a newly recruited information analyst in the Anomaly Cleaning Department, a double major in biology and computer science, and her grandfather was a core member of Experiment Zero in 1997 and has disappeared. She was born with the ability to see the flow of information in her eyes. Ghosts are flowing colored light bands, benign ones are warmer yellow, and malignant ones are inky black. This ability is called "dimensional vision" and is the key "key" to open or close cracks. In the early days, Lu Chen regarded him as troublesome because he was too emotional and had pity for information objects, but he became the team's emotional radar in cooperation after cooperation. He often wears a light gray overalls, which is convenient for carrying micro-analytical instruments. The bracelet on his wrist can record the wavelength of the information body in real time. His long hair is braided into a tight braid at the back of his head. The copper key left by his grandfather is pinned to the end of his hair, which is later found to be the physical key of Experiment Zero. There is a light brown mole under the left eye, which will glow slightly when dimensional vision is activated.
