Mo Xiao

Biodata

Power Progression

Appearance

• Hair and eyes: Long silver-white hair, silver eyelashes, and deep-blue eyes, also described as azure 15 47.
• Face and bearing: Cool, refined features and an aloof, noble appearance. Both Xin Lan and Chi Ming regard his looks as particularly distinctive 35 46 47.
• Usual clothing: An immaculate uniform, black leather gloves, and a hat used in formal greetings 8 13 45.
• Jewelry: A sapphire earring normally hidden beneath his hair 47.
• Casual appearance: Changes into lightweight white clothes when trying to reconcile with Xin Lan; later cooks in an apron with his hair tied in a low ponytail 46 48.

Personality

Mo Xiao initially presents himself as courteous, controlled, and businesslike. Rather than competing through overt flirtation, he offers Xin Lan concrete compensation and administrative privileges. His composure extends to physical provocation: when Wu Xi punches him at her direction, he does not retaliate and retains his polite smile 8 13 34.

His restraint conceals strong jealousy and possessiveness. He broods over Xin Lan’s acceptance of Chi Ming’s familiar address, confronts her after detecting her scent on Mo Yilai, and privately destroys a fountain pen after learning that Chi Ming and Wu Xi will take turns sharing her room 23 27 45.

He is willing to combine official responsibilities with personal schemes. After gaining permission to live with Xin Lan, he selects contamination-clearing assignments that remove Chi Ming and Wu Xi from the residence. The work is genuinely urgent, and they are the only two sentinels whose Rampage Levels make them eligible, but he also intends to create an opportunity to win her favor 47.

Mo Xiao can recognize and correct his mistakes. He eventually understands that treating Xin Lan as an ordinary guide has alienated her, and that limited privileges are not equivalent to meaningful authority. He offers her his position and begins learning how to care for her directly. Witnessing her destroy powerful contaminants further replaces his protective assumptions with open admiration and awe 46 47 50.

Abilities & Skills

Yinglong Spirit Body

His Spirit Body is an enormous blue-and-white winged dragon 49 50.

• Flight and transport: Carries Xin Lan and Mo Xiao toward the center of a contamination source 49 50.
• Size adjustment: Can grow larger in preparation for combat 50.
• Physical strength: Uses its claws to tear apart a giant contaminated lizard and retrieve the crystal fragment inside it 50.
• Temperament: Xuan Jia describes Mo Xiao’s Spirit Body as more obedient than his own Taotie, allowing Mo Xiao to live outside District K1 41.

Sentinel Physiology

• Strength: Wu Xi believes that even three of himself together could not defeat Mo Xiao 34.
• Scent recognition: Detects Xin Lan’s distinctive scent on Mo Yilai after the latter leaves the Sanctuary 27.
• Endurance: Maintains his administrative duties despite severe mental instability; his riot value is initially described as the highest among Xin Lan’s five matched sentinels 13.
• Contamination vulnerability: Exposure near a contamination source rapidly overwhelms him with pain, hallucinations, and unconsciousness 49.

Mental Landscape

• Environment: White clouds filled with dazzling gemstones 49.
• Spirit Body behavior: During purification, his dragon flies among the clouds and gathers gemstones to offer Xin Lan 49.
• Recovery: Xin Lan purifies most of the landscape while simultaneously defending them from surrounding pollutants 49.

Administration and Security

• Guide employment: Negotiates Xin Lan’s workload, leave arrangements, compensation, accommodation, and proposed administrative rights 9 13.
• Facilities management: Personally oversees the furnishing of the ninety-first floor 35.
• Security coordination: Receives departure notifications, dispatches sentinels to follow Xin Lan, and investigates alien spies and Free Alliance infiltrators 16 27.
• Operational knowledge: Recognizes that a solitary, unusually powerful contaminant may have incorporated a source’s crystal fragment into its body 50.
• Political offer: Claims he can help Xin Lan pursue the position of Federation chief administrator; this remains an offer rather than a demonstrated achievement 47.

Domestic Skills

• Cooking: Prepares dinner for Xin Lan, though she judges his cooking inferior to Chi Ming’s and Wu Xi’s. She nevertheless finds his steak tender and juicy 48.
• Massage: Attempts to learn by watching Chi Ming, but Xin Lan soon replaces him with Wu Xi because of the difference in technique 47.

History

Matching with Xin Lan

During the Federation’s war with the Free Alliance, Mo Xiao informs K9 District’s sentinels that the Federation has stopped sending guides. The Star Brain subsequently matches him, Yun Jin, Wu Xi, Cang Leng, and Chi Ming with the newly registered Xin Lan at 99.99% compatibility 2.

He formally introduces himself when Xin Lan visits the Sanctuary. She refuses his offered handshake and insists on hearing the working conditions before deciding whether to remain. Mo Xiao explains that she can choose five to eight applicants to soothe, take leave freely, and stay at the Sanctuary 8 9.

To secure her cooperation, he offers an SSS-class compensation package and selected administrator privileges, including limited enforcement authority, meeting attendance, voting rights, and access to administrative information. Xin Lan accepts and initiates a handshake herself 13.

Suspicions About Her Rank

After Xin Lan demonstrates extraordinary psychic power, Mo Xiao and Yun Jin consider how to protect her secret. Further testing suggests that her registered S-rank may substantially understate her abilities, raising the possibility that she could leave K9 District and unbind from them 12 15.

Mo Xiao later proposes another spiritual-power assessment. Xin Lan refuses after he confirms that the decision is hers 22.

He also prepares detailed instructions covering soothing equipment and safe fluctuations in sentinels’ Rampage Levels. Repeated warnings about the attachment caused by deep connections reveal his reluctance to see her become involved with numerous sentinels 20.

Jealousy and Boundaries

Mo Xiao becomes troubled by Xin Lan’s preferential treatment of Chi Ming, particularly her acceptance of the nickname “Lanlan.” After detecting her scent on Mo Yilai, he visits the soothing room without an appointment and questions her about deep linking 23 27.

Xin Lan challenges his claim that he is merely concerned about her safety. He admits to some jealousy, acknowledges that guides may choose their own deep-link partners, and apologizes. Before leaving, he promises not to disturb her unannounced except on official business 27.

Joint Combat Exercise Dispute

Xin Lan becomes angry when she learns that public discussion already assumes she will bring a sentinel team to the Joint Combat Exercise, although Mo Xiao has not informed or consulted her. Mo Xiao maintains that he has not promised the Federation she will participate, but recognizes that he failed to notify her promptly or address the assumptions circulating on the Star Network 34.

His apology does not restore his place beside her. Although he personally furnished the ninety-first floor, Xin Lan denies him a bedroom there and sends him back to the ninetieth floor. She leaves open the possibility of reconsidering once he understands his real value to her 35.

Offering His Position

After learning that Chi Ming and Wu Xi will alternate sharing Xin Lan’s room, Mo Xiao tries to arrange authentication for her previously promised administrator privileges. When she ignores the message, he visits in casual clothes and realizes that she wants actual power rather than minor permissions 45 46.

He kneels and offers to make her the next administrator of K9 District. He also offers to help her pursue the Federation’s chief administrator position and places himself at her disposal. Xin Lan allows him to move upstairs that night, though she restricts him to addressing her by her name rather than a more intimate nickname 46 47.

Contamination-Source Expedition

Mo Xiao sends Chi Ming and Wu Xi to clear contamination sources, fulfilling a pressing district need while removing his leading romantic rivals. Chi Ming responds by sending him detailed instructions about Xin Lan’s preferences, prompting Mo Xiao to recognize him as his greatest rival 47 48.

While cooking for Xin Lan, Mo Xiao explains that contamination sources contain crystal fragments. She immediately decides to obtain one, and he accompanies her. He initially mistakes her urgency for concern about Chi Ming and Wu Xi, only for her to explain that she wants the crystal before they destroy it 48.

At the expanded source, Mo Xiao’s Rampage Level surges and he collapses. Xin Lan purifies most of his Mental Landscape while killing the surrounding pollutants, then slaps him awake. He releases his Yinglong and takes her toward the source’s center 49.

There, Xin Lan instantly incapacitates a giant contaminated lizard. Mo Xiao helps extract its crystal fragment and witnesses her kill numerous approaching contaminants at once. The experience overturns his belief that she needs a sentinel’s protection and leaves him openly awed by her strength 50.

Relationships

• Xin Lan — His 99.99%-compatible guide and the focus of his romantic pursuit. Their relationship improves after he offers her real authority rather than limited privileges; she later saves him through deep mental purification 2 46 47 49.
• Xuan Jia — His brother. Xuan Jia’s unstable Taotie confines him to District K1, unlike Mo Xiao. The brothers first add each other on the Star Network when Xuan Jia asks him to interrupt Xin Lan and Wu Xi’s bath; Mo Xiao refuses to intervene 41 44.
• Chi Ming — Fellow guard sentinel and the rival Mo Xiao takes most seriously. He respects Chi Ming’s willingness to prioritize Xin Lan’s comfort even while another man is caring for her 48.
• Wu Xi — Longtime companion and romantic rival. Wu Xi punches him at Xin Lan’s direction and later openly accuses him of using missions to remove competition 34 47.
• Cang Leng and Yun Jin — Fellow matched sentinels and competitors for Xin Lan’s attention. They provoke his jealousy with news of her sleeping arrangements and warn her against his political maneuvering 45 47.
• Mo Yilai — A source of suspicion and jealousy. Detecting Xin Lan’s scent on him prompts Mo Xiao’s confrontation over deep linking; Mo Xiao also suspects that he resembles the leader of an organization involved in guide abductions 27.

Equipment & Personal Items

• Xin Lan’s photograph: Keeps a photograph of her and studies it privately when troubled by their relationship 16 45.
• Smart wristband: Receives Sanctuary alerts and supports communication with Xin Lan and the other sentinels 16 45.
• Hovercar: Uses it to accompany Xin Lan to the contamination source 48 49.
• Guide Pheromones: Carries them inside his clothes, but cannot administer them before losing consciousness during his contamination-induced episode 49.