Mo Shiyu

Biodata

Feature	Information
Name	Mo Shiyu (墨诗雨)
Alias(es)	Chubby Yu; School Belle Mo; “lucky Spiritmaster” (a label she does not fully accept)
Species/Race	Human
Gender	Female
Affiliation	House Mo; North Sichuan Spirit Contract Master Academy; Kunlun University
Occupation/Role	Spirit Contract Master; Xia Yuan’s contractor
Status	Alive
First Appearance	Chapter 2

Background / History

Mo Shiyu is a member of Chuanbei’s House Mo. Before contracting Xia Yuan, she possessed only Xiao Hei, a C-rank support-type Cat Spirit, despite having the highest spiritual energy among her freshman class. She had also secretly possessed an ability since childhood that lets her view the attributes, potential, and hidden traits of uncontracted spirits. 2

At the Myriad Realms Spirit Card Pool, she used this ability on the fading R-rank Xia Yuan and saw his SSS+MAX growth potential, hidden Many-Faced SSR trait, and full-star contract recommendation. Trusting her assessment, she rushed to contract him just before he disappeared; the contract immediately caused his transformation into an SSR. 2 3 4

Her parents were Lin Yu and Mo Shishan. Lin Yu was an SR Contract Spirit, while Mo Shishan was a Spirit Tamer. They died protecting her and other civilians during Ultimate Terror Little Bu’s destruction of Rongcheng City. Mo Shiyu later relived their deaths through a forced return to the past, leaving her emotionally devastated and unable to alter the outcome. 89 157 After their revenge was achieved, she was finally able to live more freely at Kunlun. 162

Appearance

Mo Shiyu is a tall, slender young woman with fair skin, large clear black-and-white eyes, and delicate features softened by slight baby fat. Her outward aloofness contrasts with an innocent, somewhat dazed charm. 2

• Wears a white, gold-trimmed Spirit Contract Master robe at the academy. 2
• Often has Xiao Hei, a black cat with snow-white wings, resting on her shoulder. 2
• Has been recognized as first on Chuanbei’s campus beauty rankings. 2
• Uses Shinra Bansho’s disguise ability alongside Xia Yuan when moving anonymously at Kunlun. 215
• In ranked matches, Xia Yuan designed her an exclusive “Ahoge King Saber” character model: golden hair in a bun with an ahoge, an indigo battle dress, and mithril shoulder armor. 55

Personality

Mo Shiyu initially appears distant and restrained, but she is quick to make decisive choices when her instincts and appraisal ability tell her an opportunity is real. Her decision to contract a supposedly worthless R-rank spirit came from conviction rather than public opinion. 2

She is conservative about dungeon risks and acutely aware of her own spiritual-power limits, often acting as the practical counterweight to Xia Yuan’s recklessness. Nevertheless, she repeatedly chooses to follow him into increasingly dangerous situations because she trusts his judgment and strength. 7 15 176 Even when she advises waiting for reinforcements against powerful world-class bosses, she remains close to the battlefield. 282

Mo Shiyu is proud and highly competitive. When House Mo suggests transferring Xia Yuan to Mo Wushuang because her spiritual power is insufficient, she vows to enter a top Spiritmaster university within a year rather than give up her contract. 12 She pushes herself through grueling secret-realm farming and is willing to endure pain to become strong enough to support Xia Yuan. 128 146

Despite her formal position as Xia Yuan’s contractor, she often indulges his demands and reacts visibly to his teasing. Her attachment to him gradually becomes romantic, though she initially insists they are only Spirit Tamer and spirit. 6 121 236 Attention from Su Yue and Feng Luan makes her jealous and insecure, while Xia Yuan’s increasing ability to fight independently leaves her wondering whether she is still needed. 150 234 235 261

Abilities & Skills

Spirit Attribute Appraisal

Mo Shiyu can see the attributes, potential, hidden traits, and contract recommendation rating of uncontracted spirits.

• Identified Xia Yuan’s hidden Many-Faced SSR trait and SSS+MAX potential while everyone else saw only an R-rank card. 2
• Her appraisal information directly prompted her to form the contract that saved Xia Yuan from disappearing. 2 3
• The ability is described as something she has possessed since childhood. 2
• After witnessing Xia Yuan change forms, she realized that Many-Faced SSR might mean he could transform into other powerful spirits, rather than merely acquire new skills. 101

Spiritual Power Support

As Xia Yuan’s Spirit Tamer, Mo Shiyu provides the spiritual power required for his combat abilities.

• Her limited reserves initially prevent Xia Yuan from maintaining his full power for long periods. 10 11
• Supporting Xia Yuan’s techniques can drain her completely, leaving her unable to stand after combat. 10 20
• She prioritizes spirit stones, breakthrough materials, and inscriptions to improve Xia Yuan rather than drawing additional spirits. 21
• She trains her spiritual power by repeatedly expending it and carries replenishment potions and defensive artifacts when entering dangerous dungeons. 12
• When Xia Yuan fuses the Uruk Great Cup, or Holy Grail, into her body, her spiritual power rapidly recovers, exceeds its previous limit, and can sustain his large-scale attacks. She later accepts the fusion again despite its pain. 126 128 137
• Her spiritual power eventually impresses other Spirit Tamers, though Mo Shiyu credits Xia Yuan for much of her growth. Spirit Power Inscriptions also allow him to fight without drawing on her reserves, a development that troubles her. 150 252 261

Spirit Tamer Barrier

Mo Shiyu can deploy a Spirit Tamer Barrier for defense.

• Held off attacks from three A-class assassin Spirit Tamers, surprising her attackers with the strength of her spiritual power. 31
• Demonstrates that she can resist direct threats rather than relying solely on Xia Yuan. 31

Contract Management

Mo Shiyu directs and cultivates her contracted spirits while organizing their resources and progression.

• Raised Xiao Hei to level 50 and brought her to the breakthrough platform, where the Cat Spirit gained a humanoid cat-eared form. 21
• Uses dungeon rewards and inscriptions to improve her support capabilities and sustain Xia Yuan. 21 29
• Maintains Xia Yuan’s contract despite repeated outside attempts to take him from her. 4 11 20
• Secured House Mo’s help with Xia Yuan’s first breakthrough materials and gave him the End of Time Spirit Power Inscription Set. 34 35

Power Progression

Stage	Development
Academy freshman	Possesses the highest spiritual energy among her freshman class but has only Xiao Hei, a C-rank support spirit. Her secret appraisal ability reveals Xia Yuan’s concealed potential. 2
Xia Yuan’s contractor	Contracts Xia Yuan as his R-rank card fades, triggering his SSR transformation. Her reserves initially cannot sustain his strongest techniques for long. 2 3 10
Early cultivation	Trains by depleting her spiritual power, obtains replenishment supplies, raises Xiao Hei to a humanoid breakthrough, and deploys a barrier against A-rank assassins. 12 21 31
Tournament growth	Supports Xia Yuan through ranked matches and the national championship, sometimes exhausting herself to the point of fainting. Their championship draws offers from Great Xia’s top universities. 69 120
Holy Grail fusion	Xia Yuan fuses the Uruk Great Cup into her body, restoring and increasing her spiritual power so she can support the full-scale Gate of Babylon. 126
Kunlun training	Repeatedly farms five-star secret realms with Xia Yuan, pushing herself to collapse. Her later spiritual power draws praise from other Spirit Tamers. 146 252

Contracted Spirits

• Xia Yuan — Her primary SSR contract spirit, later a UR spirit companion. Mo Shiyu discovered his hidden potential and formed the contract that saved him. His many awakened forms and growing independence change, but do not end, their partnership. 2 3 101 150 197
• Xiao Hei / Black Cat Spirit — A C-rank support-type Cat Spirit with a hidden trait that reduces spiritual-power consumption; later breaks through into a cat-eared spirit girl. 2 12 21

Relationships

• Xia Yuan — Contracted spirit and closest partner. She trusts his strength, worries about his safety, and steadily develops romantic feelings for him. She is delighted when he treats her gently, even as his independence sometimes makes her feel unnecessary. 3 10 121 176 236 256 261
• Xiao Hei — Her C-rank support spirit. Mo Shiyu cultivates her but firmly maintains her authority as master, despite Xiao Hei’s tendency to fawn over Xia Yuan. 21 84
• Luo Ziyan — Childhood caretaker and friend; the two reunite in the Imperial Capital before the National Spiritmaster Summit Tournament. They later continue spending time together at Kunlun. 71 72 260 273
• Mo Cheng — Her uncle and head of House Mo. He initially seeks to transfer Xia Yuan to Mo Wushuang due to Mo Shiyu’s insufficient spiritual power, but later assists her and Xia Yuan against House Mu. 11 12 206
• Mo Wushuang — House Mo relative who wanted Xia Yuan’s contract and later resents Mo Shiyu for obtaining him. 11 12 217
• Lin Yu — Mother and an SR Contract Spirit. She died fighting to protect Mo Shiyu and civilians during Little Bu’s attack on Rongcheng. 89 157
• Mo Shishan — Father and a Spirit Tamer. He charged Little Bu despite being unarmed and, after Lin Yu’s death, chose to walk into the flames with her. 89 157
• Lu Yao — A young member of House Lu whom Mo Shiyu supports when she seeks Xia Yuan’s help to save Lu Changhe. 205
• Jiang Li — Xia Yuan’s former would-be contractor. Jiang Li blames Mo Shiyu for taking the SSR opportunity she discarded and later becomes consumed by regret. 4 20 98
• Su Yue — Skyvault Academy’s leading Spirit Tamer and an admirer of Xia Yuan. Mo Shiyu regards her interest in him as a threat. 216 234
• Feng Luan — A UR spirit whose attention to Xia Yuan arouses Mo Shiyu’s jealousy and concern. 234 235

Story Role / Major Arcs

Contracting Xia Yuan

Mo Shiyu enters the card-pool ceremony as a freshman with only a C-rank support spirit. Her appraisal ability reveals Xia Yuan’s concealed value, allowing her to contract him moments before his disappearance and trigger his SSR transformation. 2 3

She defends her new contract when Jiang Li attempts to reclaim Xia Yuan by force. The sudden possession of an SSR makes Mo Shiyu both admired and targeted. 4 9

Early Academy Growth

Mo Shiyu supports Xia Yuan through solo dungeon clears, assassination attempts, and the Abyss dungeon incident. Though frequently exhausted by supplying him with spiritual power, she gains public recognition, an honorary medal, and spirit stones for her contribution to the Abyss-dungeon victory. 7 10 20

When House Mo pressures her to transfer Xia Yuan to Mo Wushuang, she refuses to relinquish him and commits herself to reaching a top university within a year. She agrees to terminate the contract voluntarily if she fails. 11 12

National Tournament and Imperial Capital

After Xia Yuan’s success in ranked matches, Mo Shiyu travels with him to the Imperial Capital for the National Spiritmaster Summit Tournament. She reunites with Luo Ziyan and acts as the calmer mediator during Xia Yuan and Luo Ziyan’s arguments. 71 72

She later becomes a national champion alongside Xia Yuan, drawing the competing recruitment efforts of Great Xia’s three top Spiritmaster universities. 120

Kunlun University

At Kunlun, Mo Shiyu continues farming five-star secret realms with Xia Yuan, repeatedly pushing herself until she collapses from exhaustion. Xia Yuan heals her and leaves a clone behind to guard her while she recovers. 143 146

As Xia Yuan becomes increasingly capable of fighting without her spiritual power, Mo Shiyu privately fears that she may no longer be needed. 150

Little Bu and the Spirit Tamer Great Wall

Mo Shiyu’s trauma surrounding Little Bu resurfaces when she is forced to relive her parents’ deaths. Her dependence on Xia Yuan becomes a central vulnerability in Little Bu’s nightmare, but she ultimately accompanies Xia Yuan toward the Spirit Tamer Great Wall despite her fear. 157 159 176

Xia Yuan’s defeat of Little Bu avenges her parents. The pair return to Kunlun as celebrated heroes, and Mo Shiyu receives substantial rewards. 162

UR Era and House Mu

After Xia Yuan ascends to UR-level power, Mo Shiyu remains his trusted contractor and a key point of contact with House Mo and the Spirit Tamer Alliance. She is furious over House Mu’s framing of House Lu and follows Xia Yuan’s decision to intervene. 197 205 206

Following the battles against multiple world-class bosses, she and Xia Yuan settle into a Kunlun villa. Xia Yuan’s victories and the interest he attracts from other Spirit Tamers intensify her affection and insecurity. 191 200 234 235 She continues to accompany him to major battles, including the defense of the Spirit Tamer Great Wall against Tyrant and Decay and the fighting around Kunlun City. 237 255 282 295

Global Summit and Four Horsemen

Mo Shiyu travels with Xia Yuan to the United States ahead of the global Spirit Tamer summit, where she meets other UR spirits and helps introduce him to M Superman and Undying Hero. She is startled by the intensity of his overseas following. 261 301 304 306

During Xia Yuan’s globally livestreamed confrontation with War, Death, Famine, and Plague, he assigns a Saitama clone to protect her. Mo Shiyu trusts the clone and is visibly captivated by the appearance and voice of Xia Yuan’s newly revealed form. 342

Trivia

• Mo Shiyu’s secret appraisal ability was the decisive reason Xia Yuan was not lost as an R-rank card. 2
• She initially had only one C-rank support spirit, Xiao Hei, before contracting Xia Yuan. 2
• Xia Yuan’s nickname for her, “Chubby Yu,” comes from teasing her slight baby fat. 3
• Although she is formally Xia Yuan’s master, she often ends up accommodating his requests for food, a bedroom, and gaming equipment. 6
• She refuses to sell the exclusive ranked-match appearance Xia Yuan designed for her. 55
• She keeps a collection of Xia Yuan’s candid photographs on her phone, though she claims she only saved them to use as punching bags. 54