Saint Teacher Ratio

Biodata

Feature	Value
Name	Saint Teacher Ratio
Alias(es)	Master Ratio; Mr. Ratio; Saint Teacher La Di Ao; Dr. Ratio
Gender	Male
Affiliation	Spirit Hall; Scholars Alliance; Ratio's Laboratory
Occupation/Role	Teacher, theoretical soul master, researcher, inventor, and creator of the Inner World
Status	Active
First Appearance	1

Background / History

Ratio was introduced as a mysterious, highly respected instructor at Spirit Hall Advanced Soul Master Academy. His classes were notoriously strict, but students sought them out for the breadth and originality of his knowledge. His stated purpose was to cure ignorance through education and enable people to approach truth through their own experience. 1 39

His early work challenged established Soul Master doctrine. He taught the Ten Core Competencies Theory, presented a formula for predicting a newborn's martial soul, and developed theories involving soul-ring fusion, the Three Elements Fusion Skill, and soul power meridians. 1 4 52

While researching soul rings, Ratio concluded that the resentment produced by violent soul-beast deaths could harm a Soul Master's talent and soul power. He consequently pursued a means for Soul Masters and soul beasts to coexist without the former needing to kill the latter for rings. 52 60

His research eventually enabled soul beasts to produce their own soul rings. This breakthrough brought Di Tian to Spirit Hall for negotiations and established Ratio as a central figure in human–soul beast cooperation. 71 73

Ratio's public influence expanded beyond scholarship after his company used its revenue for charitable education. Common people began calling him the Saint Teacher, while increasingly fervent supporters elevated him above conventional political and religious authority. 112 126 130

After casually killing the God of Slaughter Xiu Pu Ruo Si, Ratio's standing became even more absolute. He later introduced the Pseudo-God Theory, a path by which Soul Masters could reach level 100 without a God Position, and began holding weekly public knowledge lectures. 145 147 151

He subsequently taught Soul Tool principles, Core Arrays, and advanced crafting methods to the public. He also accepted selected successful crafters as students, including Sea God Poseidon, Bibi Dong, Bo Saixi, Sword Douluo, and others. 177 179 181 182

In later research, Ratio developed cultivation methods, created and governed an Inner World, and constructed entry structures across Douluo Continent so living beings could enter it in spiritual form. 237 259 295

Appearance

Ratio has a fit, statue-like physique and is repeatedly noted for his exceptional beauty. He habitually conceals his face beneath a distinctive plaster or stone headpiece, making his appearance immediately recognizable across the continent. 52 98 295

• Wears a plaster head or stone-like mask that obscures his face. 142 227 295
• Has a muscular, well-proportioned body described as beautiful like a statue. 52 295
• His portrait became widely circulated and admired in Martial Soul City. 98
• Can appear in other forms, including a younger body resembling a fourteen- or fifteen-year-old boy. 300

Personality

Ratio is aloof, blunt, and intensely focused on research. He rejects empty flattery, political maneuvering, and dependence on him; when Shi Nian attempted to address him as teacher, Ratio refused and told him to continue developing his own work independently. 39

He values truth, personal inquiry, and practical understanding over reputation. Although he shares foundational knowledge freely, he deliberately withholds direct answers when doing so would prevent others from learning through experience. 31 115 147

Despite his cold manner, Ratio acts from a physician's benevolent heart. His work on self-produced soul rings, equal access to education, cultivation methods, and the Inner World consistently seeks to improve the prospects of both humans and soul beasts. 52 60 126 295

Abilities & Skills

Soul Master Theory and Research

Ratio possesses knowledge far beyond contemporary Douluo standards and can rapidly derive, test, and organize complex theories.

• Developed a formula intended to predict a newborn's martial soul. 4
• Researched soul-ring fusion, Three Elements Fusion, soul-ring sealing, and Soul Power Inscription. 31 84 92
• Deduced that soul-power purity distinguishes soul beasts' production of soul rings from that of Soul Masters. 60
• Created the Pseudo-God Theory for reaching level 100 without relying on a God Position. 147 151
• Adapted and tested cultivation methods including the Heavenly Essence Skill, Heavenly Eye Visualization Method, Tai Chi, Golden Bell Cover, and Demonic Eight Steps. 237

Soul Ring Manipulation

Ratio can manipulate soul rings in ways considered impossible by ordinary Soul Masters.

• Removed Demon Bear Douluo's Hundred Year Soul Ring without harming him. 83 84
• Planned to transfer and fuse soul rings between Soul Masters. 83
• Developed a method enabling soul beasts to create their own soul rings without dying. 71 73
• Considered using a self-produced soul ring as a substitute for a ninth ring that he could not absorb. 73

Soul Tool Engineering

Ratio is the leading authority on Soul Tools, teaching both their theory and practical construction.

• Taught that Core Arrays function as mechanisms while metal implements act as carriers. 177
• Demonstrated the crafting of Soul Tools from the fourth through tenth levels. 179
• Publicly taught attendees how to create Ninth Level Soul Tools. 177
• Possesses the Anti-Godly Power Cannon, a Soul Tool powerful enough to disperse a Heavenly Tribulation. 169 170 175
• Uses Soul Tools capable of instantly subduing multiple Titled Douluo without conventional soul-power propulsion. 177

Spatial and Technological Constructs

Ratio can create advanced structures and devices through his knowledge and power.

• Constructed a technologically styled residence outside Shrek Academy almost instantly. 123
• Uses a light-screen system capable of locating a specific individual on Douluo Star. 214
• Employs Blue Flame for instantaneous movement. 186
• Created Golden Holy Pillars, an Ice Snow Tower, and a sea eye to enable spiritual entry into the Inner World. 295

Divine and World-Level Power

Ratio's power surpasses ordinary gods and is feared even by the God Realm.

• Casually killed the God of Slaughter Xiu Pu Ruo Si, a First Level God. 145
• Is regarded by Di Tian as at least God King-level after this feat. 145
• Transformed into a World God during the conflict between the Original Sin Gods and Elemental Gods. 266
• Casually killed the half-step God King-level God of Wrath while ending the divine conflict. 266
• Is considered stronger than the entire God Realm by those seeking his power. 294

Inner World

Ratio possesses an Inner World which he studies, develops, and governs as its creator.

• Observes lifeforms within the Inner World and senses danger through the law of fate. 259
• Intends to create a world capable of nurturing life and unique lifeforms under his complete authority. 228
• Granted creator authority within the Inner World to Qian Renxue, Spirit Kite Douluo, and Bi Ji. 298
• Allows living beings to enter in spiritual form through purpose-built transfer structures. 295

Equipment / Weapons / Items

• Plaster Head — Ratio's signature face-concealing headpiece. 227 295
• Anti-Godly Power Cannon — A Soul Tool capable of dispersing a Heavenly Tribulation. 169 170
• Phase Spirit Fire — A flame on his shoulder used for departure and movement. 209
• God of Slaughter's Divine Seat — Summoned by Ratio while advising Hundred-Level God Ascenders. 228
• Return Journey — A large-scale device associated with his attempted return to his original world. 293 315

Relationships

• Bibi Dong — Initially hostile toward Ratio and attempted to have him removed from Spirit Hall. Their relationship later became intimate, though she remained frustrated by his refusal to restore her former path of soul power. 1 151 196
• Qian Daoliu — Spirit Hall's Grand Elder and a major supporter of Ratio's work; repeatedly assists with organizing Ratio's lectures and policies. 31 147 164
• Spirit Kite Douluo — Assistant and fervent admirer who seeks Ratio's acknowledgment and publicly claims devotion to him. 73 83 137
• Bi Ji — Loyal associate who assists Ratio and later receives creator authority in the Inner World. 127 298
• Di Tian — Soul-beast collaborator who works with Ratio on self-produced soul rings, Soul Tools, and soul-beast development. 71 179 210
• Demon Bear Douluo — Pledged loyalty after Ratio removed his soul ring without injury. 83 84
• Sea God Poseidon — Became Ratio's student after presenting a Fifth Level Soul Tool for critique. 181 182
• Shi Nian — A theoretical scholar whom Ratio refuses to formally accept early on, but later guides in developing an Anti-Spirit Skill. 39 173
• Ji Xiang — A talented scholar praised by Ratio for his sensitivity to Core Arrays and Inscription Studies. 206 209
• Xiao Bai — Befriended Ratio after agreeing to temporarily host the God of Slaughter's Godhood. 206 211
• Tang Ya — Received Ratio's help sealing and controlling the evil power within her Blue Silver Grass Spirit. 293

Story Role / Major Arcs

Spirit Hall Academy and Early Theory

Ratio arrives as an exceptional teacher at Spirit Hall Advanced Soul Master Academy, where his unconventional lectures and martial-soul prediction theory draw both admiration and opposition. 1 4

Soul Ring and Soul Beast Research

He investigates the harm caused by conventional soul-ring acquisition and develops the foundation for soul beasts to produce rings without dying. 52 57 60

Scholars Alliance and Saint Teacher Movement

Ratio's theories attract continent-wide attention, inspire the formation of the Scholars Alliance, and lead common people to name him the Saint Teacher. 53 71 112

Godslayer and Pseudo-God Theory

After eliminating the God of Slaughter, Ratio reveals a route to godhood at level 100 and begins regular knowledge lectures for the public. 145 147 155

Soul Tool Era

Ratio teaches Soul Tool construction on an unprecedented scale, selects students through practical crafting, and guides technological projects that reshape transportation and infrastructure. 175 177 179 210

World God Intervention

During a divine war, Ratio manifests as a World God, destroys disobedient gods, and imposes order on the conflict. 266

Inner World Development

Ratio expands the Inner World and builds access points across Douluo Continent so living beings can enter it in spirit form. 259 295 298

Notable Quotes

“I am not your teacher, and you are not my student. There's no need for such address.” 39

“That is your own affair. Don't expect anyone to help you.” 39

“I am not teaching you, I am just telling you the truth.” 266

“Saint Teacher? No, I am just Ratio.” 300

Trivia

• Ratio's masked appearance is so recognizable that imitators dress like him while claiming to act in the name of justice. 295
• He does not appear to enjoy public worship and dislikes excessive fanaticism surrounding his name. 128 148
• Although widely called the Saint Teacher, Ratio personally identifies himself simply as “Ratio.” 227 300