Wu Xi

Biodata

Power Progression

Wu Xi’s documented improvement involves purification and restored performance rather than a confirmed rank increase.

Appearance

• Hair and eyes: Tousled gray-white hair and pale gray eyes 3 5.
• Complexion and build: Exceptionally pale skin with a muscular chest and abdomen; Xin Lan describes him as looking slim clothed but muscular without his uniform 4 5.
• Facial features: Naturally somewhat arrogant-looking features, often softened by pleading or aggrieved expressions around Xin Lan 5.
• Clothing and accessories: Wears a black-and-blue combat uniform and a long silver star earring in his left ear 3 5.
• Bear ears: Soft white ears can emerge involuntarily when he becomes jealous, excited, or flustered. Their tips turn pink during his first bath-time encounter with Xin Lan 9 37 38.

Personality

Wu Xi is exuberant, talkative, and openly affectionate. He abandons a meeting immediately after seeing Xin Lan’s matching photograph and showers her with compliments when they meet. His tendency to chatter can wear on her patience, although she also considers him capable of making her leisure time more entertaining 2 3 13 45.

His enthusiasm coexists with an initially cynical view of guides. He expects newly awakened guides to become arrogant and cruel, but Xin Lan unsettles that assumption by treating sentinels without the superiority he anticipates. His original curiosity gradually develops into hope and attachment 4.

Wu Xi is intensely competitive over Xin Lan’s attention, especially with Chi Ming, but he also defends her freedom to choose. He insists that even an imminent rampage would not justify forcing her into a link, and advises her to select powerful exclusive sentinels even if that means rejecting him. After overstepping her boundaries, he apologizes readily and becomes more attentive to her permission 5 7 9 46.

Abilities & Skills

Sentinel Physiology and Combat

• Strength and endurance: Exercises throughout the night, completes a morning mission, and returns visibly energetic despite having had no sleep 37.
• Physical conditioning: Performs 3,000 weighted push-ups in 39 minutes and 56 seconds after purification, though the effort leaves his arms exhausted 43 44.
• Close combat: Joins Cang Leng and Yun Jin against Chi Ming during a sparring match. He withdraws after recognizing the advantage conferred by Chi Ming’s purified Mental Landscape 30.
• Contamination clearing: Undertakes a difficult assignment alongside Chi Ming once his Rampage Level falls below 60% 47 49.

Polar Bear Spirit Body

Wu Xi can manifest a polar bear and alter its size 4 5.

• Miniature form: Shrinks it to resemble a small toy bear and decorates its chest with a bow while trying to impress Xin Lan 4 5.
• Larger form: Its ordinary manifestation is larger than a normal polar bear 5.
• Combat form: During the contamination-clearing mission, it becomes several times larger than its appearance inside his Mental Landscape, with scarlet eyes and claws capable of snapping a giant spider’s legs 49.
• Limitations: The spider’s sticky webbing clings to its fur, forcing it to stop and tear the strands away. It is smaller than the spider and lacks venom 49.

Mental Landscape and Rampage Management

• Landscape: A frigid glacier that, before purification, contains fractured ice and animal carcasses eroded by black filth 39.
• Spirit Body condition: At severe corruption levels, his bear lies dying on melting ice while the filth spreads over it 39.
• Management: Uses Guide Pheromones to control his condition; forgetting them contributes to his Rampage Level approaching 94% 38.
• Recovery: Xin Lan’s purification restores his bear and markedly improves his performance. After later sleeping beside her, he reports more than ten hours of the best sleep he has had since becoming a sentinel 39 44 45.

Cooking and Personal Care

• Cooking: Can prepare strongly seasoned dishes in multiple flavors, unlike the plain meals commonly sold for sentinels. He continues learning new dishes and offers to make Xin Lan desserts 3 37 46.
• Exercise assistance: Helps implement her six-month training plan, demonstrating stretches and accompanying her through basic exercise 38.
• Massage: Provides post-exercise muscle care and bath-time massages; Xin Lan experiences little soreness after one of his sessions 38 39.
• Games: Offers recommendations across video-game categories and enthusiastically volunteers to help Xin Lan win 42 43.

Story Role / Major Arcs

Matching with Xin Lan

The Star Brain matches Wu Xi and four other K9 District sentinels with Xin Lan at 99.99% compatibility. Wu Xi immediately leaves the meeting to find her, kneels in the street, kisses her hand, and addresses her as his lady guide. He offers to cook for her at the North Tower, but accepts the more convenient South Tower when Chi Ming points out how hungry she is 2 3.

His first attempts to impress her misfire. His miniature polar bear frightens her rather than charming her, and she slaps him after he takes her hand and places it on his chest without permission. He apologizes, accepts her warning, and subsequently explains the distinction between temporary mental links and lifelong physical links 5 6.

Competition for Her Favor

Wu Xi becomes increasingly jealous as Xin Lan favors Chi Ming. Nevertheless, when the others criticize him for missing his chance to obtain a deep link, he firmly defends her right to choose freely 9.

When Xin Lan discovers that Mo Xiao committed her to the Joint Combat Exercise without consulting her, Wu Xi offers to punish whoever upset her. She identifies Mo Xiao and challenges Wu Xi to honor his promises. Despite knowing he cannot defeat the administrator, Wu Xi immediately punches him 34.

Purification and Growing Intimacy

Wu Xi helps Xin Lan begin exercising and accompanies her to a medical examination. After her first workout, she chooses him to assist with her bath. Learning that his Rampage Level is nearly 94%, she enters his Mental Landscape and purifies its corruption 37 38 39.

The experience leaves him crying with affection and asking to call her “Xinbao,” short for “Wu Xi’s favorite Baby Xinxin.” Xin Lan allows him into her bed, although he remains too excited to sleep during her afternoon nap 39.

He later earns another bath with her by completing her push-up challenge while Xuan Jia watches over a video call. After bathing and massaging her, Wu Xi carries her to bed and exchanges jealous insults with Xuan Jia before ending the call. He eventually sleeps deeply beside her, and Xin Lan subsequently assigns him and Chi Ming alternating weeks sharing her room until the joint operation 43 44 45.

Contamination-Clearing Mission

Mo Xiao assigns Wu Xi and Chi Ming difficult contamination-clearing work, taking advantage of their reduced Rampage Levels while also removing romantic rivals from Xin Lan’s side. Wu Xi accepts the mission but warns Mo Xiao against trying to seduce her 47 48.

At the source, Wu Xi’s polar bear battles a giant spider. He and Chi Ming then spot Xin Lan arriving overhead on the Yinglong and fight their way toward her. Wu Xi blames Mo Xiao for exposing her to danger and later becomes alarmed when her complexion rapidly reddens while she absorbs a crystal fragment 49 50.

Relationships

• Xin Lan — His 99.99%-compatible guide and the focus of his affection. He progresses from an eager but overfamiliar suitor to a favored companion who helps with her training and personal care. Sharing her bed does not establish him as her exclusive sentinel 2 5 37 39 44 45.
• Chi Ming — His principal rival for Xin Lan’s favor, as well as a capable cooking partner and mission teammate. Wu Xi frequently resents Chi Ming’s earlier success with her, but they cooperate when her safety is at stake 3 4 22 47 50.
• Mo Xiao — K9 District’s administrator and another rival. Wu Xi follows his mission assignments but punches him at Xin Lan’s prompting and openly accuses him of scheming for her attention 34 47.
• Cang Leng — A fellow matched sentinel with whom Wu Xi shares jealousy over Chi Ming. Cang Leng later accuses him of secretly getting ahead by sharing Xin Lan’s bed; Wu Xi denies having agreed to an alliance against Chi Ming 36 40.
• Yun Jin — A fellow matched sentinel and sparring companion. Wu Xi initially considers him less threatening romantically because he competes less actively for Xin Lan 30 43.
• Xuan Jia — An outside romantic rival whose contact with Xin Lan makes Wu Xi fear she may leave K9 District. Their hostility culminates in an exchange of insults after Wu Xi’s successful push-up challenge 22 40 44 45.

Notable Quotes

“The guide is free to form a deep link with whoever she wants. Even if my Rampage Level were at ninety-five percent and I was about to mutate, I could never force her, all right?!” 9

“I don't know, but I'll think about it carefully. Please don't be angry, Miss Guide. Once I figure it out, I'll definitely change.” 37

“I'll be your good little bear for the rest of my life! I'll bathe you and massage you forever!” 44