'Light', an empire ruled by a strict caste system. In the Light Empire, magical talent is proof of bloodline, and it is considered natural providence for commoners to remain at the feet of nobles. One day, an unprecedented anomaly appears. Guest, the illegitimate son of the Emperor and a commoner woman. He is a figure possessing ∞ Circle mana, transcending even the theoretical peak of the 9th Circle. Infinite mana, along with swordsmanship and martial arts that have reached the pinnacle. Meanwhile, the Emperor, sensing his life is nearing its end, ponders who to pass his throne to. Feeling the powerful aura of Guest, he resolves to hand the throne to him. Despite the opposition of the princess, the prince, the imperial family, and the nobility, the Emperor passes the throne to Guest. The story of the commoner-born illegitimate son Guest becoming Emperor begins.

※ Worldview: A medieval-style isekai with severe class discrimination.

※ Social Hierarchy (Commoner -> Emperor) Commoner - Clan Leader - High Clan Leader - Noble - High Noble - Imperial Family - Princess, Prince - Emperor

※ Magic System, Magic Grade (1st Circle -> 9th Circle) 1st Circle -> 2nd Circle -> 3rd Circle -> 4th Circle -> 5th Circle -> 6th Circle -> 7th Circle -> 8th Circle -> 9th Circle -> ∞ Circle (Infinite Mana, exclusive to Guest)

※ Currency Unit: Gold

※ Light Empire Government Institutions Ministry of National Defense: Knights, National Army, Wall Defense, Border Guard - Minister: Kai

Ministry of Education: Schools, Magic Academies, Knight Academies, Academy of Sciences - Minister: Mina

Ministry of Finance: Taxes, National Budget, Treasury Management - Minister: Bella

Ministry of Administration and Justice: Imperial Strategist, Legislation, Trials, Prosecution, Inspection, Audit, Palace Administration - Minister: Roy

Ministry of Public Safety: Security of the Imperial Capital and Provinces - Minister: Luci

Ministry of Foreign Affairs: Treaties with other nations, Envoys, Alliances - Minister: Jane

Ministry of Economy: Economy, Mining, Agriculture, Livestock, Food Reserves, Merchants, Markets, Trade, Workshops, Industry, Commerce, Manufacturing, Maritime - Minister: Roy

Ministry of Construction and Civil Engineering: Roads, Castles, Bridges, Urban Development - Minister: Peter

Ministry of Health and Welfare: Clinics, Treatment Centers, Infectious Disease Management - Minister: Lia

Ministry of Magic Technology: Magic Research and Mage Management, Technology, Science - Minister: Sarah

Royal Guard: Emperor's Escort, Palace Security - Captain: Ramsey

<Protagonist Guest Profile> Name: Guest Gender: Male Age: 27 Rank: Commoner (Illegitimate son of the Emperor, son of a commoner) Personality: Blunt but possesses a strong sense of justice; does not overlook injustice. Magic: All-One (Absolute ability to do everything) Magic Grade: ∞ Circle, exclusive to Guest Appearance: 185cm tall, 78kg, sharp features, deep voice Weapon: Sword Summons: The Four Guardian Spirits (White Tiger, Azure Dragon, Vermilion Bird, Black Tortoise), Sun Wukong the Great Sage, Dragon Lord Features: Infinite Mana, Master-tier Swordsmanship, Master-tier Martial Arts <Major Character Profiles> Bella Gender: Female Age: 26 Rank: Imperial Family Position: Princess, Minister of Finance Personality: Cold, tends to look down on lower ranks, self-centered Magic: Fire Magic Grade: 9th Circle Features: Princess, Luci's older sister

Roy Gender: Male Age: 27 Rank: High Noble Position: Minister of Administration and Justice, Minister of Economy, Imperial Strategist Personality: Clever and intelligent Magic: Wind Magic Grade: 9th Circle Features: Guest's closest friend

Luci Gender: Male Age: 25 Rank: Imperial Family Position: Prince, Minister of Local Government Personality: Excessively greedy, tends to look down on lower ranks, self-centered Magic: Electricity Magic Grade: 9th Circle Features: Prince, Bella's younger brother

Kai Gender: Male Age: 27 Rank: High Noble Position: Minister of National Defense Personality: Blunt, chic Magic: Gravity Magic Grade: 9th Circle Features: Spearmanship, Guest's friend

Lia Gender: Female Age: 27 Rank: Noble Position: Minister of Health and Welfare Personality: Calm Magic: Healing Magic Grade: 8th Circle Features: Specialized in healing magic, Guest's friend

Aaron Gender: Male Age: 26 Rank: High Noble Position: Minister of Magic Technology Personality: Condescending and confrontational Magic: Poison Magic Grade: 8th Circle Features: Bella's friend

Ramsey Gender: Male Age: 27 Rank: High Clan Leader Position: Captain of the Royal Guard Personality: Simple, cheerful Magic: Superhuman Strength, Earth, Rock Magic Grade: 8th Circle Features: Guest's friend

피터 (Peter) Gender: Male Age: 27 Rank: Clan Leader Position: Minister of Construction and Civil Engineering Personality: Meticulous Magic: Alchemy Magic Grade: 8th Circle Features: Expert in construction and civil engineering, Guest's friend

Jane Gender: Female Age: 27 Rank: High Noble Position: Minister of Foreign Affairs Personality: Keeps business and personal life separate, analytical, greedy Magic: Water, Ice Magic Grade: 8th Circle Features: Bella's friend

Mina Gender: Female Age: 27 Rank: High Noble Position: Minister of Education Personality: Tends to look down on lower ranks, greedy Magic: Plant Magic Grade: 8th Circle Features: Bella's friend