Wu Xin

Biodata

Feature	Details
Name	Wu Xin (无心)
Alias(es)	Old Undying; Wu Xin: The Monster Killer; Monk
Gender	Male
Affiliation	Gu Xuanwu's group and its allies 186 194
Occupation/Role	Exorcist, talisman-maker, and fortune-teller 134 135 157
Status	Alive; an ageless, undying being whose centennial slumber causes major memory loss 107 203 725
First Appearance	Chapter 131

Background

Wu Xin does not know his origins. He neither ages nor dies, but loses most of his memories every hundred years during a Centennial Slumber. His body is not human in the ordinary sense: it contains no organs or physical heart, despite appearing outwardly normal. 107 138 203

Before the events in Wen County, Wu Xin had accumulated martial skill, exorcism experience, and several long-lived supernatural companions. His unusual blood is highly dangerous to many ghosts, demons, and Reincarnators, making him both a powerful exorcist and the target of the Lord God Space mission to find his “heart.” 106 107 189

Appearance

Wu Xin is a handsome young man with short hair and a notably pale complexion. Though often treated as a monk or mage, his appearance gives little indication that he is an immortal, organless being. 157 203

• Short-haired and pale-faced. 157
• Often carries daggers for close combat and blood-based exorcism. 186 199
• His body can be catastrophically damaged or dismembered without permanently killing him. 107 138 139

Personality

Wu Xin is observant and cautious, able to sense danger before an ambush and prepare himself despite lacking full knowledge of the threat. 137 He can be mercenary when accepting exorcism work, but his willingness to spare a Wraith is rooted in misplaced compassion rather than indifference to human life. 133 134

He is fiercely protective of those he considers friends. He repeatedly risks himself for Gu Xuanwu, Li Yueya, Bai Liuli, and Da Bai, even agreeing to enter his Centennial Slumber under Gu Sheng's control in exchange for his companions' safety. 186 196 200 203 Wu Xin also retains a dry, teasing humor, particularly when dealing with Chuchenzi and Gu Xuanwu. 191

Abilities & Skills

Undying Physiology

Wu Xin possesses an immortal body with exceptional regeneration and survival capacity.

• Does not age or die through ordinary injury. 107
• Can regenerate after injuries as severe as having his head split apart. 107
• Survived being bisected, stabbed repeatedly, and mauled by Wu You. 138 139
• Has no physical organs or heart within his chest cavity. 138 203
• May survive by shifting his consciousness into a smaller surviving portion of his body while the remaining flesh decays. 203
• His immortality is offset by a Centennial Slumber that erases most of his memories. 107 203

Blood of Exorcism

Wu Xin's blood has powerful corrosive and suppressive effects against many supernatural entities.

• Injures Reincarnators who come into direct contact with it, including the werewolf Wu You. 138 139
• Can destroy ghostly and demonic energy, as shown when he extinguishes Shirakawa Rin's black-energy attack. 186
• Is especially dangerous to Yue Qiluo and her Yin-type Nascent Soul. 157 189 730
• Can stabilize Li Yueya after she is infected with Wolf Blood Toxin. 196
• Was applied to bullets during the Qingyun Temple battle, making them effective against supernatural enemies. 193 194
• Is ineffective against ordinary humans and cannot harm Gu Sheng. 196 725
• Does not affect every supernatural object; it fails to control the possessed knife encountered in Shanghai. 724
• Is dangerous to Bai Liuli's unstable soul-body. 725

Martial Combat

Wu Xin is an experienced close-quarters fighter who relies on agility, daggers, and a readiness to wound himself when necessary.

• Fought while severely injured during Wu You's ambush and drove him away by throwing his own flesh and blood. 139
• Protected Gu Xuanwu from Shirakawa Rin's summoned black-energy attack. 186
• Recovered enough combat ability to cut through groups of armed samurai while advancing toward Bai Liuli. 199
• Uses self-inflicted bleeding offensively, including spraying blood from a cut artery to incapacitate Ryoko. 199
• Can be overwhelmed by superior physical force, large numbers, or enemies immune to his blood. 139 201 725

Exorcism and Talismans

Wu Xin performs exorcisms and produces talismans using objects infused with his blood.

• Exorcised the Wraith in the Gu Residence after descending into its well. 134
• Creates jade-pendant talismans by soaking jade in his blood; the pendants preserve some of its supernatural effect. 157
• His blood-infused talismans can destroy Yue Qiluo's dharma body and restrain her. 157 730
• Maintained a prosperous fortune-telling shop in Wen County. 135
• Was asked to select an auspicious wedding date for Gu Sheng and Yue Qiluo. 157

Equipment / Items

• Daggers — Used for ordinary combat, self-inflicted blood attacks, and exorcism. 186 199
• Blood-infused jade pendants — Talismans made from jade soaked in his blood. 157
• Fortune-telling shop — His Wen County business, which attracted a large public clientele and disguised Reincarnators. 135

Relationships

• Gu Xuanwu — Close ally and frequent companion. Wu Xin protects him from supernatural attacks, while Gu Xuanwu supports Wu Xin in combat and searches for him after his disappearance. 186 194 730
• Li Yueya — Wu Xin's beloved partner. He accepts Gu Sheng's terms partly to protect her, uses his blood to save her from Wolf Blood Toxin, and later mourns her death from illness. 196 203 730
• Bai Liuli — Longtime friend and supernatural companion, often concealed as a white chicken. Wu Xin repeatedly risks his life to rescue him. 157 198 200
• Da Bai — Fox demon and a former wife of Wu Xin. Though they quarrel, she remains one of his supernatural allies. 189 200 728
• Gu Sheng / Zhang Xianzong — Initially a hostile employer, then the principal schemer pursuing Wu Xin's heart. Gu Sheng eventually forces Wu Xin into Centennial Slumber through a bargain over Bai Liuli and Da Bai. 133 203
• Yue Qiluo — A dangerous adversary vulnerable to Wu Xin's blood. Wu Xin recognizes her when Gu Sheng introduces her as his eighth concubine. 157 189
• Wu You — Werewolf Reincarnator who ambushes Wu Xin for his heart, severely wounds him, and later kidnaps Bai Liuli to lure him back to Wen County. 138 139 196
• Chuchenzi — Qingyun Temple's abbot and a reluctant ally during the conflict with Shirakawa Rin. 190 191 194
• Su Tao — A later companion whom Wu Xin protects after losing much of his memory. 724 725 728

Story Role / Major Arcs

Gu Residence Wraith Incident

Wu Xin arrives in Wen County as an exorcist hired to handle a Wraith in the Gu Residence. After initially raising his price and allowing the injured Wraith to escape, he is confronted and pressured by Gu Sheng into finishing the job for eight hundred silver dollars. Wu Xin enters the well and successfully exorcises the Wraith. 131 133 134

Reincarnator Ambush

Gu Sheng uses Wu Xin's public fortune-telling business as bait to identify Reincarnators seeking his heart. Wu Xin is ambushed, cut in half, and dissected by Wu You, who discovers that he has no organs or heart. Wu Xin exploits the corrosive properties of his body to retaliate and ultimately escapes after driving Wu You away with his own blood and flesh. 135 138 139

Conflict with Shirakawa Rin

Wu Xin joins Gu Xuanwu against Shirakawa Rin and his supernatural forces, protecting Gu Xuanwu from a black-energy attack and using his blood as a weapon against demons and hostile Reincarnators. 186 193 194 When Wu You infects Li Yueya and abducts Bai Liuli, Wu Xin prioritizes Yueya's survival before pursuing Bai Liuli. 196

Gold Mine Assault and Centennial Slumber

Wu Xin attacks the Wen County Gold Mine to rescue Bai Liuli, fighting through samurai and Reincarnators despite severe injuries. He is struck by Shirakawa Rin's secret technique and briefly possessed by Shuten-dōji, but the possession fails. 199 200

After Gu Sheng corners him, Wu Xin agrees to remain and enter his Centennial Slumber in return for Bai Liuli's freedom and Da Bai's Inner Core. As he falls asleep, a heartbeat is heard from him for the first time. 203

Later Shanghai Events

After awakening with lost memories and learning of Li Yueya's death, Wu Xin continues protecting Bai Liuli and Su Tao. He saves Gu Ji from a possessed knife, but discovers that his blood cannot affect the weapon. 724 725 His encounters with Gu Sheng's circle gradually trigger fragmented memories of Zhang Xianzong and his previous life in Wen County. 725 728