Background
The wrongful case of Zhu Ju's thirty-thousand-strings embezzlement occurred during the Jiahe period of Sunwu. This era saw Sun Quan establish a special institution known as the "Dianxiao" — the Office of Records Review — initially intended to audit documents and supervise officials, run by Sun Quan's trusted man Lv Yi. As the Dianxiao's functions expanded, however, Lv Yi progressively gained the power to "investigate and impeach" middle and senior officials. His authority grew so great that even established senior figures such as Lu Xun and Pan Jun became fearful. Zhu Ju, as Sun Quan's son-in-law, Left General, and Marquis of Yunyang, was one of the core figures among Sunwu's new generation of commanders — the San Guozhi describes him as "endowed with both civil and martial talent, worthy of succession," and Sun Quan regarded him as the successor to Lv Meng and Zhang Wen. In essence, this case arose because Lv Yi sought to extend the Dianxiao's power to suppress even the highest tier of the inner aristocracy by attacking an official of Zhu Ju's rank.
Principal Figures
Zhu Ju was the victim: at the time he held the post of Left General and Marquis of Yunyang, known for his humility toward educated men and his generosity with money — though his stipends and grants were ample, he consistently felt they were insufficient. This character made him ill-equipped for fierce resistance when falsely accused. Sun Quan was the ultimate adjudicator; in the early stages of the affair his attitude was ambiguous and he questioned Zhu Ju repeatedly, only emitting remorse — "If even Zhu Ju could be wronged, how much more so ordinary officials and commoners" — after the truth came to light. This belated awakening reflects the distortion of Sun Quan's system of trust in his later years. Lv Yi was the representative Dianxiao official; in this case his methods were laid bare: he tortured the clerk responsible to death under the suspicion of "fraudulent embezzlement," then turned around and accused Zhu Ju of concealing a serious crime — a textbook case of fabricating charges rather than conducting an inquiry. The military clerk Liu Zhu was the pivotal figure who turned the case around: several months after the incident, he perceived the truth and had the courage to expose it, causing the case to be reversed.
Core Issues
Three core issues animate this case: the boundaries of the Dianxiao system, Sun Quan's degree of trust in his outer-court senior ministers, and the breakdown of mechanisms allowing officials to protest their innocence. First, the Dianxiao was from the outset a "palace-guard-style" supervisory institution that Sun Quan used to bypass the normal civil bureaucracy; but once it held the power of life and death without being subject to normal procedural constraints, it inevitably moved toward fabricating charges and rent-seeking. Lv Yi's act of torturing the clerk to death had already far exceeded any reasonable definition of "auditing". Second, the fact that Zhu Ju — a core member of the inner aristocracy at the rank of imperial son-in-law — was questioned by a Dianxiao official and could not clear his name, and was forced to "sit in penitence on straw matting" for months, meant that Sun Quan no longer maintained basic trust even toward his closest commanders. This was a defining signal that Sunwu's power structure was gradually becoming saturated with mutual suspicion during the Jiahe–Chiwu years. Third, the fact that Zhu Ju was unable to establish his innocence over months of waiting meant that Sunwu at the time had no effective mechanism for appeal or review; senior ministers facing false accusations by the Dianxiao could only wait for the emperor to ask questions on his own initiative. This institutional fragility planted the seeds for the full eruption of the Lv Yi case later on.
Political Consequences
After Liu Zhu exposed the truth, Sun Quan "was greatly awakened" and immediately ordered a thorough investigation of Lv Yi, rewarding Liu Zhu with one million cash. This awakening had a chain effect — it led to Lv Yi's execution in the first year of Chiwu (238) and the abolition of the Dianxiao system, providing short-term relief from the atmosphere of terror at the Sunwu center. But in the long run the underlying tendency toward suspicion did not truly reverse itself: the succession struggle over the crown prince (beginning in the fourth year of Chiwu) immediately ignited, and large numbers of aristocrats — Lu Xun, Gu Tan, Zhang Xiu, and others — were purged. Zhu Ju himself was in the end ordered to death by Sun Quan in the thirteenth year of Chiwu (250) for holding firm to a position in the Ergongzhizheng. This means that the resolution of the Lv Yi case was only a surface-level correction; the deeper problem of the collapse of trust between the ruler and the aristocratic class remained, and in Sun Quan's final years it developed into a comprehensive political disaster that directly weakened Sunwu's capacity to resist simultaneous pressure from Caowei and the Simashi.
Counterfactual Analysis
If Liu Zhu had not exposed the truth, how would the Zhu Ju case have concluded? In all probability Zhu Ju would have been convicted, exiled, or even ordered to death, and Lv Yi's power would have grown further while the Sunwu aristocratic class fell into deeper panic. On a larger scale, the critical question in this case is not whether Zhu Ju himself could be exonerated, but whether Sun Quan's reflection on the Dianxiao system came early or late. What actually happened was: Liu Zhu exposes the truth → Sun Quan awakens → Lv Yi falls from power. Yet Sun Quan never truly reformed the supervisory system as a result; he simply replaced the "Dianxiao" with other confidants and intelligence networks by different names. Had Sun Quan reflected more thoroughly in the Zhu Ju case — for instance by establishing an independent review mechanism, or limiting the ability of personal favorites to directly impeach senior ministers — the Ergongzhizheng of Sunwu's later years might not have developed into so devastating a political disaster. But Sun Quan's late-year habit of suspicion was already deeply rooted, and how far such "belated mending" could have gone was constrained by the political character of the ruler himself. The wrongful imprisonment of Zhu Ju over thirty thousand strings of cash is therefore a case repeatedly studied in Sunwu's political history — it both demonstrates the harm of a system of exclusive personal spies, and reveals how a clever ruler can in his later years be repeatedly held captive by his own suspicious nature.