Thanh Trâm Hành VietSub, The Golden Hairpin (2021)
Cẩm Đô Phủ doãn Hoàng Mẫn is a respected official and a devoted father. His daughter, Hoàng Tử Hà, is a diligent and intelligent young woman who is eager to learn and has a strong sense of justice. Since she was young, she has helped her father solve many cases and has achieved great success. However, one fateful day, tragedy strikes the Hoàng family, leaving only Hoàng Tử Hà as the sole survivor. Unfortunately, she is falsely accused of being the culprit and is forced to flee, carrying the burden of injustice. Determined to clear her name, she travels thousands of miles to seek help from Quỳ Vương Lý Thư Bạch and reopen the case.
Coincidentally, at this time, a series of mysterious crimes known as the "Four Directions Case" occur in Bắc Viêm. Lý Thư Bạch orders Hoàng Tử Hà to investigate the truth behind these crimes, considering it as an opportunity to test her abilities. Hoàng Tử Hà, hiding her true identity, quickly investigates and unravels the truth behind the Four Directions Case, which involves a conspiracy of greed and power. As a result, she becomes a trusted ally by Quỳ Vương's side. While Quỳ Vương agrees to help investigate the Hoàng family case, he is also burdened by other crimes happening in Bắc Viêm. These include the selection of a concubine for Quỳ Vương, where Vương Nhược, the daughter of the Vương Lang Gia family, becomes the chosen one. However, the situation becomes complicated when the concubine is replaced by an imposter, putting her life in danger multiple times.
During a gathering at Tiến Phúc Temple, a person is found dead in a fire. Hoàng Tử Hà and Lý Thư Bạch join forces to investigate the incident, eventually uncovering clues related to family, love, and friendship. Hoàng Tử Hà's integrity and righteousness gradually melt the cold and tough exterior of Quỳ Vương, and together they embark on a journey to restore justice and righteousness.
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