Xu Shu

Xu Shu, who first approaches Xuande under the name Shan Fu, is a gifted strategist whose brief service changes the course of Xuande’s fortunes. He helps defeat Cao Ren’s forces, but Cao Cao draws him away by exploiting his devotion to his mother. Xu Shu’s departure costs Xuande a valued adviser; his recommendation of Kong Ming, however, points Xuande toward the strategist who will become central to his cause. Even after leaving, Xu Shu’s conduct shows that service under Cao Cao does not erase his gratitude to Xuande or his opposition to Cao Cao’s ambitions.

Identity and Background

Xu Shu presents himself to Xuande as Shan Fu, explaining that he has come seeking him and used a song to attract his attention. The adopted name conceals a turbulent history. Cheng Yu later tells Cao Cao that Xu Shu was once a skilled fencer who killed a man while righting a wrong. Captured, he refused to disclose his identity; although he was paraded through the streets, nobody identified him, and friends eventually freed him. He then became a scholar and travelled to visit learned masters. This history links his earlier commitment to righting injustice with the learning and strategic judgment that later make him valuable to Xuande.

Xu Shu’s attachment to his mother is central to his character and to the turning point in his story. Cao Cao’s advisers know that she lives alone and that Xu Shu is her only son. They judge that an appeal from her will bring him away from Xuande, and Xu Shu’s response confirms the depth of his filial obligation: when he believes his mother has written in distress, he immediately decides to go to her. His departure is neither a rejection of Xuande nor a change of allegiance by choice; Cao Cao’s deception puts his loyalty to his lord in conflict with his duty to his mother.

Service to Xuande

After Xu Shu introduces himself, he and Xuande quickly become close companions. Xu Shu is impressed by the virtuous character of Xuande’s rule and his genuine compassion for ordinary people. When Cao Cao sends Cao Ren to seize Xinye and capture Xuande, Xu Shu’s counsel becomes a practical defense against the attack. Cao Ren’s use of the Eight Gates formation does not account for Xu Shu’s ability to identify how it can be countered. Xuande sends Zhao Zilong with five hundred picked warriors to attack from the position Xu Shu advises. Cao Ren is driven back; his subsequent night assault is also anticipated and ambushed, leaving him to retreat toward Xuchang with most of his army lost. Xuande’s forces then capture Fan.

The victories reveal why Cao Cao regards Xu Shu as more than a useful adviser. When Cao Ren returns defeated, Cao Cao asks Cheng Yu to assess the strategist. Cheng Yu says that Xu Shu is ten times better than himself, a judgment that makes Xu Shu’s continued service to Xuande a pressing political and military concern. The account thus establishes Xu Shu’s importance not through a formal title but through the failures of an enemy commander and the esteem of Cao Cao’s own advisers.

Departure and Recommendation of Kong Ming

To remove Xu Shu from Xuande’s service, Cao Cao has Xu Shu’s mother brought to the capital and kept under restraint. She scorns Cao Cao and refuses to cooperate with the scheme. He nevertheless feigns affection toward her, obtaining samples of her handwriting, and has a letter forged in her name. The false message succeeds because Xu Shu, believing his mother needs him, cannot remain with Xuande. Xuande understands that the reason for leaving is filial duty and does not try to prevent him.

Before he rides away, Xu Shu tells Xuande that another adviser could surpass him. He describes this man as incomparable in wisdom and virtue, then gives his identity: Zhuge Liang, known as Kong Ming. Xu Shu explains that Kong Ming came from Yangdu in Langye, settled near Nanyang with his younger brother Jun after their uncle’s death, and took the name Master Sleeping Dragon from a nearby hill. He urges Xuande to seek him out, warning that such a person cannot simply be summoned. Xu Shu’s departure therefore carries a consequential gift: although he leaves an immediate gap in Xuande’s council, his recommendation directs Xuande toward the alliance with Kong Ming.

A Divided Allegiance

Xu Shu’s return to Cao Cao’s sphere does not end his connection with Xuande. When Cao Cao proposes that Xuande surrender in order to spare ordinary people, Xu Shu is sent as the messenger. He uses the opportunity to meet Xuande and Kong Ming again, and privately warns Xuande not to trust the offer. He explains that the display of concern is meant to make Cao Cao appear humane and win support, while Cao Cao’s forces are preparing to attack across a riverbed that has been filled in. Xu Shu urges Xuande to leave because the city cannot be defended. He also tells him that, although he will honor his pledge to remain with Cao Cao, he will never help Cao Cao devise an attack plan. Xuande refuses to surrender, and Xu Shu returns to report that decision.

Later, during Cao Cao’s campaign against Wu, Xu Shu encounters Pang Tong, his old friend, and learns of Pang Tong’s plan. Xu Shu does not expose it, recalling Xuande’s kindness and his own desire for revenge against Cao Cao for his mother’s death. He also fears being trapped when Cao Cao is defeated, with the consequences falling on people regardless of their loyalties. Pang Tong suggests a way for him to leave without revealing the plan. Xu Shu then spreads a report that Han Sui and Ma Teng are advancing from the north toward the capital. When Cao Cao convenes his advisers over the supposed threat, Xu Shu volunteers to lead troops to guard the San Pass and report any emergency. Cao Cao approves, allowing Xu Shu to put distance between himself and the southern battlefront. The maneuver lets Xu Shu protect Pang Tong’s secret while limiting his own involvement in Cao Cao’s campaign.

Narrative Role

Xu Shu’s arc is shaped by successive acts of discernment and concealment. He sees through Cao Ren’s tactical advantage, recognizes Kong Ming’s extraordinary ability, and later sees the deception behind Cao Cao’s appeal to Xuande’s concern for the people. Against these strategic successes stands the forged letter that defeats him through family duty rather than military force. His story also distinguishes outward service from inward allegiance: Xu Shu goes to Cao Cao because he believes his mother needs him, yet he refuses to assist Cao Cao against Xuande and later finds a way to avoid the campaign against Wu. His brief presence therefore serves as both a test of Xuande’s capacity to accept a painful but legitimate departure and the narrative bridge to Kong Ming’s emergence.