Chu Long

Biodata

Feature	Details
Name	Chu Long (楚龍)
Alias(es)	Xi Chu Overlord (in Sea of Questions Continent); “Mathematics Supreme God”; “Academic God” 47 106
Gender	Male
Affiliation	Former Jinghai No. 4 High School Mathematics Competition Team leader; Peking University Mathematics Department; later Former USTC Mathematics Department 99 672 1537
Occupation / Role	Mathematician, educator, mathematical researcher, and Vice Dean of the Former USTC Mathematics Department 1527 1537
First Appearance	Identified by Song He as the bald, legendary Chu Long 46

Power Progression

Stage / Realm / Level	Chapter	Notes
Mathematics — Gold Level 28	47	Song He scans him with a Combat Power Detector and confirms his standing as the school’s top mathematics student.
Sea of Questions Continent — Level 55 Swordsman	106	As Xi Chu Overlord, he flies to Lin Village City to reinforce the defenders against the All-Night God of War and King of Ten Thousand Poisons.
Mathematics — Sudden Enlightenment	111	Listening to Song He explain Topology gives him a new mathematical insight and advances his understanding.
Mathematics — Gold Level 40	112	His level is measured after the enlightenment triggered by Song He’s lecture.
Sea of Questions Continent — Level 60 Swordsman	116	After consuming resources contributed by his teammates, Xi Chu Overlord reaches the game’s highest known level at the time.
Mathematics — Five-level increase	153	Song He’s explanation of three methods causes another sudden enlightenment; Chu Long immediately gains five levels, though the resulting level is not stated.

Background / History

Chu Long was Jinghai No. 4 High School’s celebrated mathematics competitor, known for his National Mathematics Award and his position as the school’s “Mathematics Supreme God.” Though dismissive of most freshmen as “cannon fodder,” he notices Song He’s potential early and regards him as a promising junior. 47 48

His status is shaken when Song He breaks one of his mathematics-lecture records. Chu Long outwardly treats the event as insignificant, but privately sees Song He as a threat and begins treating the junior’s rapid progress as a challenge to his own standing. 99

During the Sea of Questions Continent competition, Chu Long leads the Mathematics Competition Team under the account Xi Chu Overlord. He repeatedly mobilizes players to defend cities, analyzes the enemy’s strategy of using artillery and zombies to grow stronger through battle, and changes the team’s defensive strategy after several disastrous losses. 106 107 108

Chu Long eventually accepts that Song He’s Topology ability exceeds his own. He attends Song He’s informal lecture, studies his problem-solving approach, and experiences a sudden enlightenment. This becomes the foundation for a rivalry that is also marked by genuine academic cooperation. 111 112

At Peking University, Chu Long studies under Professor Deng Puhe in a bachelor’s-master’s program and chooses the Small Lin-Gar Conjecture as his thesis direction. He invites Song He to collaborate, sharing unpublished class notes on Homological Mirror Symmetry despite his own exhaustion from intensive study. 672 675

He later presents Song He’s proof of the Song He Manifold Conjecture to an international mathematical audience, receiving Song He’s explanations through an earpiece while writing and lecturing for more than two and a half hours. 1181 1182 By the time he becomes Vice Dean of the Former USTC Mathematics Department, he is trusted with confidential mathematical work for the Rocket Institute. 1537

Appearance

Chu Long is frequently recognized by his closely shaved or nearly bald head, a look he maintains during periods of intense study. He is described as handsome, though Qiu Lingshan regularly teases him by comparing him unfavorably to Song He. 49 59

• Often bald or nearly bald after long periods of academic overwork. 59 673
• Became visibly thinner after obsessively attempting to prove a conjecture for a month. 387
• Uses his bald appearance as evidence of his dedication to saving time for study. 59

Personality

Chu Long presents himself as calm, confident, and dignified—the demeanor expected of Jinghai No. 4 High School’s leading mathematics student. He initially dismisses Song He’s achievements in public, but his private reactions show deep anxiety over being surpassed. 99 103

He is fiercely competitive and prone to overworking himself when challenged. Song He’s progress pushes him into sleepless study sessions, obsessive attempts to prove conjectures, and, at one low point, drinking alone while describing the pain of striving desperately without being able to close the gap. 484 672

Despite his pride, Chu Long is capable of humility when knowledge is at stake. He listens to Song He’s Topology lecture, openly acknowledges Song He’s superiority in that field, and seeks cooperation rather than refusing help. 111 672

As a teacher, he is demanding but patient. He reprimands Yuan Tiangang and Yang Yu for bypassing him and wasting Katerina’s time, then accompanies them to resolve the mathematical problem together. 1527

Abilities & Skills

Mathematics

Chu Long is an elite mathematician with strong foundations in competition mathematics, Topology, Algebra, and advanced research problems.

• Solves and explains difficult Mathematics Competition problems, including advanced Topology material. 110 192
• Conducts research on the Small Lin-Gar Conjecture and studies Homological Mirror Symmetry through Professor Deng’s lectures and notes. 672 675
• Was invited to solve an engineering model by a team that specifically requested a mathematician from Peking University. 1144
• Served as the public presenter for Song He’s proof of the Song He Manifold Conjecture. 1181 1182
• Limit: Song He’s Topology methods and later mathematical advances repeatedly exceed Chu Long’s understanding, creating intense pressure on him. 103 484

Teaching and Mentorship

Chu Long can teach technical material concisely and adapts his explanations to students’ ability.

• Tutors Song He in Physics during Song He’s intensive self-study period. 199
• Explains Topology to Leng Xiangwen, though his concise approach proves too difficult for Leng to fully follow. 110
• Supervises child prodigies Yuan Tiangang and Yang Yu and teaches them to communicate respectfully with instructors and collaborators. 1527
• Shares his competition notes with Song He and permits the notes to be passed on to Ning Mo afterward. 151

Strategic Command

As Xi Chu Overlord, Chu Long is a capable strategist and battlefield coordinator in Sea of Questions Continent.

• Rapidly deploys to threatened cities with his flying-sword swordsman account. 106
• Identifies that Song He and the King of Ten Thousand Poisons are using fast attacks, corpse collection, and zombie refinement to snowball their advantage. 107
• Orders team-wide tactical adjustments, city defense, ambushes, and coordinated reinforcements. 107 108
• Limit: Song He’s artillery micro-management and rapid assaults repeatedly outpace Chu Long’s attempts to predict and intercept him. 107 101

Academic Presentation

Chu Long remains professional under extreme public pressure.

• Delivers an international presentation despite initially lacking the manuscript and not fully understanding Song He’s newly created notation. 1181
• Writes and explains the proof of the Song He Manifold Conjecture for over two and a half hours while receiving real-time guidance through an earpiece. 1182

Equipment / Weapons / Items

• Xi Chu Overlord account — A high-level flying-sword swordsman account in Sea of Questions Continent. 106
• Homological Mirror Symmetry notes — Dense, unpublished lecture notes from Professor Deng’s classes, shared with Song He for their Lin-Gar Conjecture research. 672
• Competition knowledge notebook — His personally compiled pre-competition summary notes, given to Song He as a gift. 151
• Bluetooth earpiece and tablet — Used to receive Song He’s real-time instructions during the Song He Manifold presentation. 1181

Relationships

• Song He — Former junior, rival, collaborator, and old classmate. Chu Long’s fear of being surpassed evolves into respect, joint research on the Small Lin-Gar Conjecture, and public presentation of Song He’s work. 99 672 1181
• Qiu Lingshan — Fellow Mathematics Competition student and frequent sparring partner. She teases him relentlessly, but they cooperate in tutoring students and leading their team. 48 110
• Leng Xiangwen — Friend and fellow academic competitor who strongly supports Chu Long’s status as the Mathematics Supreme God. 188 128
• Deng Puhe — Advisor at Peking University whose demanding lectures and research on Homological Mirror Symmetry shape Chu Long’s work on the Small Lin-Gar Conjecture. 672 675
• Yang Jingshan — A formidable Peking University mathematics prodigy whose ambition to solve the Lin-Gar Conjectures pressures Chu Long into seeking Song He’s help. 673
• Katerina — Fellow mathematician and collaborator on a difficult problem posed by Chu Long’s students. 1527
• Yuan Tiangang and Yang Yu — His child-prodigy students, whom he corrects after they seek Katerina’s help without consulting him first. 1527

Notable Quotes

“Now I’ve come to my senses. It turns out my junior is a Fields Medal winner, one of the Supreme Gods in the current world of Mathematics. I blindly chased him as my goal for so many years, and before I knew it, I had chased myself to the position of the Gauss Prize.” 1475

“Striving with all your might but still being suppressed, risking everything but still unable to close the gap, charging the mountain again and again only to be beaten back. How many people can understand that feeling?” 484

Trivia

• Chu Long claims that he keeps his head shaved to save study time and says he will grow his hair long only after scoring above 990. 59
• His handwritten notes are described as extremely cramped and scribbled, resembling a doctor’s prescription because he writes at the pace of Professor Deng’s lectures. 672
• He calls Song He “Brother Song” during their research collaboration. 672