Sun Moon Empire

Biodata

Feature	Details
Name	Sun Moon Empire (日月帝国)
Occupation/Role	Western continental empire and birthplace of advanced Soul Tool technology 88
Status	Active
First Appearance	Mentioned as the Star Luo Empire's long-standing opponent in the Mingdou Mountain Range 48

Background

The Sun Moon Empire has remained in a military stalemate with the Douluo Three Kingdoms for thousands of years. Its Soul Tool advantage allows it to hold the upper hand in warfare, but it lacks the quantity and quality of high-level Soul Masters needed to decisively defeat forces such as Shrek Academy, the Body Sect, and the major sects. 91

Unifying the continent is a long-standing imperial ambition. The arrival of Qian Huan—Qin Heng's Illusion Body, publicly presented as a level 97 spiritual-type Super Douluo—was therefore treated as a rare opportunity to resolve the empire's shortage of top-tier combat power. 91 92

After internal debate, the imperial court accepted Qian Huan and Qian Heng's offer of cooperation. They formally swore loyalty and agreed not to disclose Soul Tool technology before the empire unified Douluo; in return, Qian Heng received access to the empire's Soul Tool education and research resources. 92 93 Unknown to the empire, Qin Heng used a false Martial Soul in the oath, leaving the contract without binding force over him. 96

Following Qian Huan's defeat of Long Xiaoyao, Emperor Xu Tianyuan decided to fund the reconstruction of Spirit Hall within the empire and propose an offensive-defensive alliance against the Douluo Three Kingdoms. 118 119

Territory and Infrastructure

The empire lies west of the continent, separated from the Heavenly Soul Empire by a long canyon and a heavily garrisoned desolate plain. 88

• Main roads use a smooth, gray-white composite paving material. 88
• Soul Tool lamps, factories, and flying Soul Tools are common sights beyond the capital. 88
• Its border with the Heavenly Soul Empire is permanently guarded by heavy forces. 88
• Soul Tool technology is described as several hundred years ahead of the three Douluo nations. 88

Ming Capital

Ming Capital is the imperial capital, built along the Mingdou Mountain Range in a tiered urban layout. It is described as a modern metropolis rather than a traditional walled city. 88

• A massive Soul Tool Tower dominates the city center and emits silver-white light over the capital. 88
• The city has no conventional walls; Soul Tool shield generators form a protective barrier around it and help regulate the internal climate. 88
• Soul Tool railcars run on fixed tracks, while citizens use communicators, lighting devices, personal shields, and foot-mounted thrusters. 88
• The city contains the Soul Tool Research Institute, a public Soul Tool Exhibition Hall, and the largest Soul Tool Trading Center in Ming Capital. 88
• The Sun Moon Royal Soul Engineer Academy is a major educational institution whose walls are made from Soul Tool alloys. 114

Government and Institutions

Institution / Position	Known role
Emperor Xu Tianyuan	Emperor of the Sun Moon Empire; approved the agreement with Qian Huan and later proposed supporting Spirit Hall's reconstruction. 92 118
Crown Prince Xu Tianran	Imperial heir whose legs were healed with the Flower of Life; later helped strengthen Qin Heng's position through Ju Zi's princess title and marriage contract. 94 95 97
Royal Offering Hall	High-level imperial body that includes Ye Yulin, its Chief Offering. 88 89
Kong Deming	Chief Soul Engineer, master of Mingde Hall, level 94 Titled Douluo, and a primary imperial adviser on Soul Tool affairs. 91
Mingde Hall	Core Soul Tool research institution associated with Kong Deming; its advanced knowledge is central to the empire's technological advantage. 88 92
Sun Moon Royal Soul Engineer Academy	Academy where Qian Heng studied Soul Tool theory under Xuan Ziwen. 93 95

Soul Tool Technology

The empire possesses a systematic Soul Tool theory framework, particularly in core-array design. In contrast, the three Douluo nations are described as relying mainly on imitation and modification rather than original theory. 88 92

Access and Secrecy

• Basic theoretical works are available in Ming Capital's public library. 91
• The library's inner section requires a special pass and holds professional Soul Tool texts and some intermediate blueprints. 91
• Technology from Level 7 upward—including blueprints and core-array theory—is treated as a core imperial secret. 88 90
• Qian Heng's position as Ju Zi's contracted fiancé eventually gave him broad access to rare metals and classified Soul Tool research data. 97

Level 9 Soul Tools

The empire's Level 9 Soul Tools represent its most destructive known technology.

• Sun Moon Divine Needle — Ye Yulin's self-developed Level 9 single-target offensive Soul Tool, which condenses stellar power into a needle of light capable of piercing a Super Douluo's defenses. 89
  • A full-power activation devastated a thirty-kilometer radius, created a crater over one kilometer wide, and melted underground rock into magma. 90
  • Ye Yulin stated that an unwary level 96 Super Douluo could be killed by it. 89
• Level 9 Fixed Soul Cannon — Mentioned as a Soul Tool specifically designed for large-scale warfare. 90

Military and Political Position

The empire's advanced Soul Tool forces are its chief military advantage, while its lack of elite Soul Masters remains its principal weakness against the three Douluo nations. 91

A spiritual-type Super Douluo was considered especially valuable because large-scale mental interference could disrupt enemy legions, while precise mental locking could expose commanders. 91 This strategic value drove the court's decision to accept Qian Huan's proposal despite concerns that Soul Tool technology could be leaked. 92

The empire also permits and encourages technical exchange with foreign Soul Masters, viewing it as a means of cultural infiltration that can spread its technological influence through the continent. 89

Relationships

• Qian Huan / Illusion Pupil Douluo — Accepted as an allied Super Douluo after offering support for continental unification in exchange for comprehensive Soul Tool education for Qian Heng. 90 92
• Qian Heng — Enrolled at the Sun Moon Royal Soul Engineer Academy and granted privileged research access through his political connection to the imperial family. 93 97
• Ye Yulin — Chief Offering who first confronted Qian Huan in Ming Capital, demonstrated the Sun Moon Divine Needle, and acted as liaison for the cooperation agreement. 89 92
• Kong Deming — Chief Soul Engineer who advocated accepting Qian Huan, drafted protections for the agreement, and arranged Qian Heng's studies. 92 93
• Spirit Hall — The imperial family offered funds, legal rights to preach and recruit, and an alliance proposal in order to bind Qian Huan's faction to the empire. 118 119
• Douluo Three Kingdoms — Long-term geopolitical rivals; the empire seeks to overcome them and unify the continent. 91
• Holy Spirit Cult — A hostile force operating within the empire's territory; Long Xiaoyao's death reduced its strength and altered the imperial balance of power. 118 119

Story Role / Major Arcs

Arrival of Qin Heng and the Illusion Body

Qin Heng travels to the empire to obtain advanced Soul Tool knowledge unavailable in the three Douluo nations. He and his Illusion Body enter Ming Capital under the guise of a gifted grandson and his powerful grandfather. 88

Recruitment of the Illusion Pupil Douluo

After Ye Yulin detects an abnormal spatial fluctuation in Ming Capital, he encounters the Illusion Body. The demonstration of the Sun Moon Divine Needle and the Illusion Body's evasive method convince Ye Yulin and Kong Deming of his value. 89 90 91

Martial Soul Contract and Academy Enrollment

The imperial court approves a Martial Soul Contract with Qian Huan and Qian Heng. Qin Heng subsequently enters the Sun Moon Royal Soul Engineer Academy, where his rapid mastery of Soul Tool theory earns Xuan Ziwen's recognition. 92 93 95

Spirit Hall Reconstruction Proposal

Qian Huan's killing of Long Xiaoyao causes the empire to reassess him as both a vital ally and a potential threat. Xu Tianyuan responds by proposing to rebuild Spirit Hall under Sun Moon Imperial protection and form a formal alliance. 118 119