Shen Zhiyu was once the cherished daughter of a prestigious prime minister's family. After her family was destroyed, she became the daughter of a condemned household and was imprisoned in the dark and hopeless Jiaofang Bureau. Determined to uncover the conspiracy hidden behind her family's case files, she carefully navigates the dangerous struggles between powerful factions. Pei Yunji, the newly crowned top scholar, is both her only lifeline and the man who led her into this disaster. At times, he coldly tests her; at others, he showers her with seemingly genuine affection. Their complicated and dangerous entanglement leaves Shen Zhiyu walking on thin ice amid lies and manipulation. As they scheme against each other through layers of intrigue and mystery, the truth behind Prince Su's case from thirteen years ago gradually comes to light. Yet Shen Zhiyu has already fallen into the tender trap Pei Yunji meticulously wove for her, with no way to escape.