Trace inspector Tang Xiaoxiao's world collapsed after her favorite black cat "Little Briquette" disappeared mysteriously, leaving only a blood-stained golden thread. Before she could get over her grief, the police station parachuted in a new criminal investigation captain—Feng Yan. He is cold and efficient, but he always appears when she is in the most embarrassing situation, protecting her behind him with an unquestionable attitude. What made her hair stand on end was that Feng Yan always had an aura that was exactly the same as "little briquettes" and made her feel at ease.
