After a high fever, Lin Ran found that he could see the unique "emotional light" emanating from everyone: anger is blazing red, joy is warm gold, sadness is deep blue, fear is cold black... He can see through disguises, see into people's hearts, and see through lies at a glance! However, this super power also came with a huge mental burden, and countless emotional information poured in, giving him a splitting headache and almost collapse. He must learn to master it. From psychological consultation to business negotiations to the detection of bizarre cases, Lin Ran has always relied on his "emotional eyes" to become an expert in resolving various interpersonal disputes and psychological problems in the city. But as his abilities deepen, he gradually becomes involved in a secret world hidden under the bustling city - "flow aberrations" bred by negative emotions, and secret organizations that covet the power of flow. Lies and conspiracies are invisible to him, but dangers and challenges also follow him. Can Lin Ran control these "emotional eyes" and become a true guardian of the urban soul in the gap between light and darkness?
