Cong Yu

Biodata

Feature	Details
Name	Cong Yu (丛雨) 17
Alias(es)	King of Wind City; Sword Saint; “Teacher CY” 101 117 529
Species/Race	Modified human with Monster magic power; formerly human 76 124 529
Gender	Male 17
Affiliation	22nd Group; Wind City Squad 34 612
Occupation/Role	Wind City High School student; manga artist; Monster Executive; King of Wind City 17 48 124 398
Status	Active 825

Power Progression

Stage / Realm / Level	Chapter	Notes
Modified human with Monster magic	67	Awakens powers similar to Snake Man’s; unlike magical girls, he can call upon magic power without transforming. Doctor’s modifications give him a body beyond ordinary Monsters. 67 71 101
Monster Executive	124	Possesses an exceptional “Small Source”: immense reserves, high output, rapid recovery, and automatic healing. 124
King Level	142	Reaches King Level as his strength and connections within the Monster world deepen. 142
Divine Power	538	Obtains Divine Power after dismantling an Angel. 538
Faith-based ascension	635	Allows worship centered on Wind City Grand Shrine to gather faith for his ascent toward godhood; later publicly establishes his will through that faith. 635 649

Background

Cong Yu was originally human. During a chaotic earlier era, he traveled with Snow Woman from Hokkaido toward Nagoya, sought an audience with Oda Nobunaga, and served as Snow Woman’s strategist and companion. His willingness to fight without fear earned him the title of Sword Saint, despite often favoring longer weapons such as spears over swords in actual combat. 357 529

Snow Woman’s magic gradually transformed him into a Monster. He later worked with Doctor on experiments involving himself, receiving modifications that developed his physical and magical potential. After joining the 22nd Group, he became a Monster Executive and eventually established himself as the King of Wind City. 101 124 786

Seeking a more peaceful life in Wind City, Cong Yu rented a home and enrolled in high school, where he became known as both a top student and an influential figure among the faculty and student organizations. He also works as a manga artist. 38 48 89 786

His identity as the King of Wind City was ultimately exposed to Yaochuan Guang, Lantian Zhu, and Xiao Cui amid a conspiracy intended to control him. Rather than abandon him, the group accepted the truth and stood with him in his planned retaliation. 398

Appearance

Cong Yu appears as a handsome Chinese-looking teenage boy with exceptionally long dark hair, usually tied into a ponytail. His modified body and extreme charm make him striking even among magical beings. 17 101

• His hair can reach his lower body when untied. 150
• Ordinary blades cannot cut his hair; he must cut it himself. 101
• His magical power manifests as a dark green so deep that it appears nearly black. 328
• Doctor’s modifications enhanced his charm to an extreme that transcends gender, race, and age. 101

Personality

Cong Yu initially presents himself as calm, cold, rational, and detached. Even when polite, he can make others feel as though he is looking down on them with the confidence of a hunter letting prey escape. 142 He is difficult to intimidate, lies smoothly when necessary, and remains composed in dangerous negotiations. 25 100

Over time, he becomes more openly playful and affectionate. He teases his friends, pats heads, gives gifts, makes strange jokes, and enjoys helping others despite his reluctance to define himself as a good person. 77 142 217 His compassion does not erase his ruthlessness: he is willing to kill decisively when he considers it necessary, including in defense of allies. 33 357

Cong Yu values companionship above abstract loyalty to one’s own kind. Snow Woman’s companionship, along with his later bonds with the Wind City Squad, helps restrain the destructive potential of his Extinction Formula. 147 434

Abilities & Skills

Modified Physiology and Magical Source

Doctor’s modifications provide Cong Yu with a body and magical source far beyond ordinary Monsters. 101 124

• Can invoke magic power at will without a magical-girl transformation. 71
• Possesses immense magical reserves, high output, rapid recovery, and automatic healing. 124
• Can withstand severe physical damage; even torn clothing repairs alongside his body after battle. 825
• Has mastered four Innate Spell Formulas with exceptionally high potential. 142

Serpent Abilities

Cong Yu’s powers are associated with the Giant Serpent and its traits of slashing, poison, and devouring. 67 784

• Giant Serpent — A magical attack powerful enough to send Azure Sky☆Qili flying. 67
• Ouroboros — Creates an ink-green, extending blade-like tail capable of swiftly piercing, pinning, and killing targets. 472
• Hydra Brand — A poison that overwrites a victim’s heart and places Cong Yu above all else. 662
• Origin Darkness: Apophis — A destructive darkness-based technique that can bisect pursuing military vehicles and serves as one of his major trump cards. 530 711

Extinction Formula

Cong Yu possesses an Extinction Formula and recognizes his own potential for world destruction. He can suppress its influence through conscience, willpower, and bonds with others, particularly friendship. 77 434

• His Source Darkness becomes dangerous if he begins abandoning all but his closest companions. 434
• He has activated his Extinction Formula on multiple occasions without losing himself to it. 434
• His friendships function as a psychological barrier against its destructive will. 611

Swordsmanship and Combat Analysis

Cong Yu is an experienced strategist and combat instructor. His Sword Saint title originated from his earlier life with Snow Woman, when he led others through conflict despite lacking magic power. 529

• Possesses sword intent sharp enough to create a storm-like slash that tears apart a barrier and exposes the sky beyond it. 510
• His formal swordsmanship has grown rusty from rarely using a sword in recent decades. 530
• Can teach swordsmanship effectively; Xian Kui progresses rapidly under his instruction. 530
• Uses tactical judgment in battle, including identifying weaknesses in magical-girl teamwork and directing allies’ attacks. 10 293
• Casts Saint’s Advent, a large-area attack that annihilates a gathering of Ancient Ones. 248

Faith Power and Divine Power

Cong Yu acquires Divine Power through Angel research and later gathers Faith Power from people who trust him as Wind City’s protector. 538 648

• Uses Faith Power for delicate assistance, such as helping Yuan'an Alisa with her swimsuit zipper without embarrassing her. 795
• Wind City Grand Shrine’s worship of Cong Yu is deliberately permitted to support his ascension. 635
• Faith Power is regarded as an “absolute shield” against the destructive force of Burning Resolve. 825

Equipment / Weapons / Items

• Sword of the Seven Emperors — Cong Yu’s enormous, rusted-looking sword. Doctor adds a Miniaturization Technique to it, though the first result is too small for combat. Red later gives the weapon to Yaochuan Guang as a divine weapon. 55 58 248
• Jormungandr Train — A train-like spatial ability or storage space used to hold objects, including Xiao Cui’s giant plush bear. 145
• Divine Artifact Hourglass — An indestructible artifact of unknown function that Cong Yu later uses to travel to another world. 577 775
• Wooden practice sword — Used while teaching Xian Kui swordsmanship. 529

Relationships

• Yaochuan Guang — Housemate, close companion, and magical-girl ally. Cong Yu teaches her combat habits and studies, agrees to protect her, and later helps her confront the truth of her identity. 10 53 90 517
• Lantian Zhu — Housemate and ally. She is among the first to question Cong Yu’s hidden past, but they grow into mutually protective companions. 29 67 398
• Xiao Cui — Cong Yu rescues her from her adoptive parents’ situation and takes responsibility for her care; she regards him as an older brother. 76 77
• Snow Woman — Childhood friend and Cong Yu’s earliest major companion. She traveled and fought beside him in the past, while her magic gradually changed him from human to Monster. 147 357 529
• Doctor — Research partner and friend whose modifications unlock Cong Yu’s exceptional physical and magical potential. Their relationship is familiar, teasing, and mutually beneficial. 57 101 124
• Chi You — Monster Emperor and close confidant. Though formally her subordinate, Cong Yu treats her more like a friend and supports her decision to relinquish her desire to rule. 525 607 608
• Red — A rescued ally and frequent combat partner. They infiltrate the Ancient Ones together and coordinate the Wind City Squad’s development. 43 248 320
• Xian Kui — Student in swordsmanship and spell formulas. Cong Yu becomes her teacher after recognizing her strong sword intent but poor practical technique. 528 529 530
• Takemikazuchi, Shuten, Tamamo, and Snow Woman — Fellow Monster Kings and long-standing friends who travel to Wind City because of their concern for Cong Yu. 105 234

Story Role / Major Arcs

• Wind City school life — Lives with Yaochuan Guang and Lantian Zhu while concealing his Monster identity, attending school, drawing manga, and quietly guiding magical-girl battles. 10 29 48
• Modified human awakening — Awakens Snake Man-like magic and undergoes testing at the Wind City Magical Girl Agency. 67
• Xiao Cui’s rescue — Removes Xiao Cui from an abusive situation and brings her into the household under Yaochuan Guang’s care. 76 77
• King of Wind City revelation — His concealed status is exposed as conspirators attempt to control him through his company and foreign magical-girl authorities. 398
• Angel conflicts — Fights Angels in China and elsewhere, acquires Divine Power, trains Xian Kui, and becomes a major defender of humanity. 528 530 538
• Faith and godhood — Permits the establishment of a shrine dedicated to himself so public faith can contribute to his ascension. 634 635
• Interstellar incidents — Leads the Wind City Squad through conflicts involving the Star Alliance, planetary governors, Calamities, and extraterrestrial societies. 662 711 714

Notable Quotes

“Admiration is the furthest distance from understanding. Your worshippers are fleeting clouds, and even those being worshipped won't keep them in their hearts.” 475

Trivia

• Cong Yu ranks first in the entire school. 89
• He is influential enough at Wind City High School to access surveillance footage through Student Council authority. 153
• He once led students in multiple “charges” on the principal’s office, including one reportedly conducted in full armor while riding a horse. 38 153
• His manga production speed is aided by his enhanced physical constitution and memories of Princess X Connect, whose concepts he adapts into a magical-girl setting. 48
• He enjoys mobile games and frequently forms connections through gaming. 57 194 613