Flender

Biodata

Feature	Value
Name	Flender (弗兰德)
Alias(es)	Four-Eyed Cat Owl; Protector Flender; “Boss Fu,” as addressed by Liu Erlong 49 82 83
Gender	Male
Affiliation	Shrek Academy; Golden Iron Triangle; Mount Buzhou 49 64 82
Occupation/Role	Headmaster of Shrek Academy; one of Mount Buzhou’s Twenty-Four Protectors, responsible for intelligence, external relations, and some internal affairs 49 81
Cultivation	Level 85 Soul Douluo, latest documented 101
Soul Master Type	Agility Attack System 81
Martial Soul	Four-Eyed Cat Owl → top-tier Flying Blackfeather Eagle 49
First Appearance	Mentioned in Chapter 2; appears directly in Chapter 4 2 4

Power Progression

Stage / Realm / Level	Chapter	Notes
Level 78 Soul Saint	4	Reveals his cultivation while standing beside Zhao Wuji against Tang Hao’s pressure.
Approaching Level 79	27	Emerges from three days of seclusion recovered and strengthened; Cao Kun’s restorative liquids retain medicinal potency within him.
Level 79 Soul Saint	49	Confirmed immediately before his Martial Soul evolution and breakthrough.
Peak Level 80 Quasi-Soul Douluo	49	High-Tier Martial Soul Evolution Liquid and Mount Buzhou’s Guidance Method evolve his Four-Eyed Cat Owl into the Flying Blackfeather Eagle and break the Level 79 bottleneck. Still needs an eighth Soul Ring.
Level 82 Soul Douluo	71	Absorbs the roughly 45,000-year-old Rift-Splitting Golden Eagle’s black Soul Ring in about two hours. Gains Sky-Splitting Thousand Swords and approaches Level 83.
Level 85 Soul Douluo	101	Confirmed after more than half a year; his foundation and command of Shrek Academy have become stronger. The breakthrough method is not specified.

Background / History

Shrek Academy and Tang Hao’s Attack

Flender had devoted half his life to Shrek Academy before Cao Kun offered him a place in Mount Buzhou. His attachment to its staff, students, and future initially made him reluctant to exchange his headmaster’s identity for membership in an unfamiliar sect 18.

When Tang Hao attacked Zhao Wuji outside the academy, Flender rushed to the scene and demanded an explanation. Although shocked by Zhao Wuji’s concealed Soul Douluo cultivation and frightened after recognizing Clear Sky Douluo, he stood beside his colleague and helped resist Tang Hao’s pressure 4.

Cao Kun’s intervention overturned Flender’s understanding of his former student. After witnessing Tang Hao’s Martial Soul Avatar and Slaughter Domain being shattered, he estimated Cao Kun’s strength at above Level 96, possibly even Limit Douluo. Tang Hao’s subsequent self-destructive attack left Flender and Zhao Wuji immobilized until Cao Kun suppressed it 11 12.

After the battle, Flender pledged support for Cao Kun and helped manage the academy’s recovery. Cao Kun asked that the true events remain concealed, then privately explained his strength through a supposed hidden-sect inheritance 15 16.

Recruitment and Tang San’s Disappearance

Cao Kun’s offer of Martial Soul evolution tempted Flender, but he first questioned Mount Buzhou’s history and motives. He accepted a three-day decision period and restorative treatment, then entrusted Cao Kun with the new students’ first lesson while he and Zhao Wuji entered seclusion. Without either man knowing, Cao Kun also placed an Indestructible Heart Bell Sub-Imprint in their souls: it could nourish them but also permit control if they betrayed the sect’s secrets or interests 17 18.

Flender emerged convinced that Mount Buzhou offered prospects Shrek could not provide alone. Before he could formally accept, Yu Xiaogang arrived at his invitation to teach theory. Flender then tried to mediate the dispute between Yu Xiaogang and Cao Kun without disclosing Cao Kun’s strength or Mount Buzhou’s secrets 27 28.

When Tang San lost his sight, Flender briefly suspected Cao Kun’s involvement but considered it unlikely that someone so powerful would need such an elaborate method. He prioritized treatment, examined Tang San, and called for Oscar’s help and his best medicine 30.

Yu Xiaogang later persuaded him that a private journey offered Tang San a chance of recovery. Flender allowed the departure, unaware that its real purpose was a reunion with Tang Hao. When the pair failed to send word, he sent Ma Hongjun to investigate the supposed medical contact; the report exposed the cover story. Flender and Zhao Wuji searched their rooms and organized discreet inquiries around Suotuo City 35 36 37 38.

Joining Mount Buzhou

Zhao Wuji’s evolution into the Dark Gold Terrorclaw Bear finally prompted Flender to pledge both himself and Shrek Academy to Mount Buzhou. Cao Kun accepted, gave him High-Tier Martial Soul Evolution Liquid, and supervised his transformation into the Flying Blackfeather Eagle 49.

The evolution brought Flender to peak Level 80 and greatly improved his speed, perception, and cutting power. Cao Kun appointed him a right-hand Protector, pairing his intelligence and administrative strengths with Zhao Wuji’s combat role 49.

Star Dou Great Forest Expedition

After consolidating his breakthrough, Flender requested help obtaining Soul Rings for himself, Oscar, and Zhao Wuji. Cao Kun arranged an expedition and prescribed body-tempering treatment so Flender could withstand a powerful eighth ring 56 57 58.

During the journey, Flender imposed weighted marching, warned the students against separating inside the forest, and defended Oscar’s claim to a Phoenix-tail Crested Serpent against Dragon Duke Meng Shu. He also identified a suitable Shadow Mantis for Zhu Zhuqing 61 62 64 67.

His own target was a roughly 45,000-year-old Rift-Splitting Golden Eagle. Flender fought it in the air using Martial Soul Avatar; Zhao Wuji’s gravity skills restricted its flight, while Zhu Zhuqing opened a gap in its feather defense. Flender delivered the fatal attack, absorbed its ring, and advanced to Level 82 70 71.

Academy Reform and Tournament Leadership

After returning, Flender proposed turning Shrek into a larger, structured academy that could cultivate talent for Mount Buzhou. Cao Kun approved the plan, delegated daily operations to him, and supplied funding, political assistance, and support for official certification 81 82.

Flender publicized his Level 82 cultivation while keeping Zhao Wuji’s Titled Douluo status hidden. Shrek’s new Advanced Soul Master Academy certification attracted applicants and returning graduates. Liu Erlong subsequently entrusted Blue Tyrant Academy’s teachers, students, and resources to him before leaving to search for Yu Xiaogang 82 83.

By the next documented tournament preparations, Flender had reached Level 85. Cao Kun instructed him and Zhao Wuji to compete normally and gave them full responsibility for leading Shrek’s team to Spirit City 101.

Appearance

• Glasses: His most consistently noted personal accessory; he frequently pushes or adjusts them during conversations 4 16 18 57 81.
• Robes: He straightens his robes before formally pledging allegiance to Cao Kun 49.
• Later bearing: At Level 85, his aura is described as steady and sharp, with rich, full Soul Power 101.

Personality

Flender is practical, calculating, and proud. Zhao Wuji notes that his outwardly miserly manner conceals considerable pride, making his decision to bow to Cao Kun especially significant. His caution over joining Mount Buzhou reflects concern for personal freedom and responsibility to the academy, rather than simple reluctance to pursue power 18 49.

His protective instincts can outweigh fear. He stands beside Zhao Wuji against Tang Hao and refuses to surrender Oscar’s rightful Soul Ring merely because Meng Shu applies pressure. In crises, he moves quickly from uncertainty to organizing treatment or investigation 4 30 38 64.

As an administrator, he balances ambition with secrecy. His reform plan uses his own public breakthrough to attract talent while concealing Zhao Wuji’s greater strength. He also urges Liu Erlong to use Shrek’s information network rather than risk an unsupported search, though he recognizes that her determination cannot be changed 81 83.

Abilities & Skills

Four-Eyed Cat Owl

• His original high-grade Martial Soul excels at speed and scouting 17 49.
• Evolves into the Flying Blackfeather Eagle through Cao Kun’s High-Tier Martial Soul Evolution Liquid and Guidance Method 49.

Flying Blackfeather Eagle

• A top-tier flying Beast Martial Soul with exceptional speed, keen perception, and powerful cutting attacks 49.
• Its evolved form has metallic black feathers, four piercing eyes, broad wings, and blade-like outer feathers; wingbeats stir thin black wind blades 49.
• Immediately after evolution, Flender moves fast enough to leave only a faint black afterimage 49.
• Supports rapid aerial engagement and evasive maneuvering against the Rift-Splitting Golden Eagle 70.

Martial Soul Avatar

• Activated through his seventh Soul Ring 70.
• Transforms him into a massive black eagle with a wingspan exceeding five meters and blade-edged feathers 70.
• Raises his attack power and speed to their peak during the aerial hunt 71.
• Does not make the Golden Eagle hunt effortless: Zhao Wuji’s gravity restriction and Zhu Zhuqing’s defense-breaking attack provide the decisive opening 71.

Sky-Splitting Thousand Swords

• His eighth Soul Skill, obtained from the roughly 45,000-year-old Rift-Splitting Golden Eagle 71.
• Releases numerous condensed black feather-swords with strong penetrating, cutting, and armor-piercing effects 71.
• Can spread across a broad area or concentrate on one point for a focused burst 71.
• Spiritual Power guidance provides tracking effects, making the projectiles difficult to evade completely 71.
• Useful for clearing multiple enemies or sustaining attacks against a powerful opponent while exploiting his mobility 71.

Scouting and Administration

• Identifies Soul Beast species, estimates their ages, and judges their suitability for particular Martial Souls 67 70 71.
• Selects campsites, organizes watches, and directs student safety during forest travel 62 70.
• Oversees Mount Buzhou’s intelligence, external relations, and some internal affairs as a Protector 49.
• Designs Shrek’s recruitment, training, staffing, facilities, and contribution systems 81.

Equipment / Items

• Glasses — Regularly worn and adjusted 4 16 81.
• Restorative Spirit Liquid — Cao Kun’s treatment repairs damaged meridians and internal organs, relieves mental exhaustion, and supports Flender’s recovery and cultivation 18 27.
• High-Tier Martial Soul Evolution Liquid — Consumed to evolve his Martial Soul and reach peak Level 80 49.
• Windshadow Body-Tempering Spirit Liquid — Provided for preparation before absorbing his eighth Soul Ring; used alongside training under Zhao Wuji’s Gravity Domain 58 60.

Relationships

• Cao Kun — Former student, savior, and eventual superior. Flender brings Shrek into Mount Buzhou, receives cultivation resources and a Protector appointment, and later addresses him with open deference 16 49 57 101.
• Zhao Wuji — Old friend and Shrek’s vice headmaster. Flender protects him against Tang Hao; they later coordinate training, Soul Ring hunting, academy reform, and tournament leadership 4 49 70 81 101.
• Oscar — His disciple, whose Innate Full Soul Power he praises. Flender defends Oscar’s claim to his third Soul Ring and celebrates his successful absorption 28 64 67.
• Yu Xiaogang — Longtime friend and fellow Golden Iron Triangle member, invited to teach at Shrek. Yu Xiaogang’s false medical story exploits Flender’s trust and leaves him searching for answers after the disappearance 28 35 38 82 83.
• Liu Erlong — Friend of decades within the trio’s emotionally complicated history. She entrusts Blue Tyrant Academy to him; he unsuccessfully urges her to seek Yu Xiaogang through Shrek’s network 83.
• Tang San — Student whose blindness Flender helps manage. He authorizes the supposed treatment trip, then organizes a search after discovering the deception 30 35 38.
• Zhu Zhuqing — Expedition companion whose precise attack breaks the Golden Eagle’s defenses and enables Flender’s finishing strike 71.
• Tang Hao — Overwhelming opponent during the attack on Zhao Wuji. Flender recognizes his identity but still stands against him beside his colleague 4.

Shrek Academy Reform

Initiative	Flender’s Plan
Public reputation	Announce his Soul Douluo advancement to attract applicants; conceal Zhao Wuji’s Titled Douluo rank as a hidden trump card 81.
Outer Court	Provide six years of foundational training and screening; outstanding students may enter the Inner Court early or become peripheral Mount Buzhou members 81.
Inner Court	Train elite students with advanced techniques and combat skills; require talent, sound character, strict assessment, and background checks 81.
Faculty and curriculum	Recruit three to five additional teachers at least at Soul Emperor level; broaden teaching into Soul Beast studies, continental history, tactical command, and physical conditioning 81.
Facilities and incentives	Expand classrooms, training grounds, and simulated environments; establish Contribution Points to reward assignments and disciplined training 81.
Official recognition	With Cao Kun’s assistance, secure Advanced Soul Master Academy certification and tournament eligibility 82.
Expansion results	Plan a campus ten times its previous size; recruit 120 outstanding students within half a month 82 84.

Notable Quotes

“From this day forward, we'll follow your lead and serve you with undivided loyalty!” 49

“This thousand-year-old Phoenix-tail Crested Serpent is also suitable for my disciple Oscar's third Soul Ring. And we found and surrounded it first. By rights, it is ours to deal with.” 64