Shen Yuan, the daughter of the Dali Temple Minister, unexpectedly awakens a special mind-reading ability, only able to hear the malicious inner thoughts hidden in other people's hearts. A gossip-lover, she relies on this superpower to see through countless hypocritical masks and unearth one conspiracy and miscarriage of justice after another hidden within the markets and the imperial court. She teams up with Xie Hui, the cold and upright Junior Minister of Dali Temple, to investigate cases while eating melons, dispensing justice for the people. Amidst playful daily routines, mysteries lurk and mutual affection quietly stirs, watching the charming mind-reading maiden and the steady Junior Minister crack baffling cases and jointly safeguard the world's fairness.