Izumo Empire

Biodata

Feature	Information
Name	Izumo Empire
Original Name	出云帝国
Type	Neutral Character (AI)
Ruling House	Chu Yun Royal Family
Government	Imperial system; later reorganized under Chen Family-led clan governance
Territory	Bordered the Jia Ma Empire
Status	Conquered by the Chen Family and renamed the Tianshu Empire 260
First Appearance	4

Background / History

The Izumo Empire existed for slightly more than two centuries. Its founding followed the rise of poison masters in the region: a Chen Family ancestor with the Calamity Poison Body established poison masters’ status, and an expert of the Feng Family founded the empire roughly a century later. 33

Despite its imperial structure, the state was politically fragmented. Major factions—including the Chen Family, Myriad Scorpion Gate, and Hundred Poisons Sect—held influence exceeding or rivaling that of the imperial household. The imperial family retained an army, but many local forces built independent power bases and gave only nominal obedience to the throne. 30 31

Izumo was known as a gathering place for poison masters. Its disorder was severe: banditry was widespread in the countryside, street violence was common, and killings or arson occurred frequently outside major cities. 55 249

Political Landscape

Faction / Institution	Position within the Empire
Chu Yun Royal Family	Nominal ruling house; increasingly unable to control powerful clans, sects, and military officers. 25 182
Chen Family	The empire’s foremost aristocratic family, possessing two Dou Huang experts, extensive military influence, and longstanding ambitions to replace the imperial house. 30 193
Murong Family	A Chen-backed mercantile clan that controlled up to 90% of Izumo commerce, giving the Chen faction immense economic leverage. 92 193
Myriad Scorpion Gate	Historically the empire’s number-one sect; its reclusive Dou Zong, Xie Biyan, was the only Dou Zong within Izumo for a time. 47 193
Hundred Poisons Sect	Initially aligned with the imperial family and fought alongside imperial troops during the rebellion, but later betrayed the throne. 25 182

Military Strength and Weaknesses

The imperial court recognized early that it could not defeat the Chen Family in open war. Chen Yuan’s faction was stated to possess two Dou Emperor-level experts, seven Dou Kings, more than fifty Dou Lings, Murong Family funding, and the military forces of Yanling County. 10

The empire’s conventional forces also suffered from poor discipline. An Izumo escort unit surrendered without resistance when surrounded by Chen Family Black Armor Soldiers armed with Armor-Piercing Crossbows; its commander judged that the imperial army would have no chance in a war against such troops. 29

The throne’s authority was further undermined by generals with ties to the Chen Family and court officials suspected of secretly collaborating with them. 25 30

Conflict with the Chen Family

After Chen Yuan recovered his missing son, Chen Cheng, the Izumo Emperor feared that the Chen Family would finally act on its rebellion plans. The court debated suppression, but Prime Minister He and a Dou Wang prince advised peace because of the overwhelming disparity in strength. 25

The resulting agreement required the empire to offer three commanderies and Princess Feng Ruoxue as Chen Cheng’s concubine. The Emperor considered the terms a humiliation but accepted them to avoid immediate war. 28

Feng Ruoxue’s journey through Yanling County exposed the imbalance between the two sides. She observed that Chen-controlled cities were more prosperous than the Izumo capital, while the Yanling Army treated her imperial escort as prisoners and answered only to the Chen Family. 29 30

Fall of the Empire

In the second month, the Chen Family publicly listed the Izumo Emperor’s “ten brutal crimes” and called for rebellion against the Chu Yun Royal Family. Ten of the empire’s thirteen counties answered the call. 182

The Chen Family deployed 300,000 elite Black Armor Army soldiers and assembled a total force of eight million troops with its allies. Within one month, the rebellion occupied most of the empire, leaving Wind God County—the region containing the imperial capital—as the final major stronghold. 182 184

The imperial defense collapsed after Prince Yu Feng Ting and his 1,500 cavalrymen were annihilated by Yuwen Tuo, eliminating a planned attack on the Chen Family’s rear. 185 The 200,000-strong Wind Battle Army later refused recruitment by Chen forces and was completely destroyed by Gai Nie and Wei Zhuang. 186 187

During the final battle, Chen Cheng and Yuwen Tuo defeated and killed Feng ZhengTian, the Feng Family’s Six-Star Dou Huang ancestor. The loss destroyed the defenders’ morale and led Izumo soldiers to surrender. 190

The Izumo Emperor refused to submit to Chen Cheng. After being restrained, he threw himself from the city wall and died, ending the Chu Yun Royal Family’s rule. 191

Aftermath

Chen Yuan’s forces advanced on Izumo Holy City, where the weakened Imperial City Defense Army surrendered after brief resistance. 192

After overthrowing the royal family, the Chen Family retained much of the existing local administration while establishing a system in which clan authority led national development and the imperial system served a supervisory role. Chen Yuan became clan patriarch, while Chen Ye and Chen Cheng held the honorary rank of grandmaster. 205 207

A nationwide assembly of sects and noble families formally confirmed Chen Family rule. The Izumo Empire was subsequently renamed the Tianshu Empire. 260

Relationships

• Chen Family — Dominant internal rival that overthrew the imperial government and succeeded it as the ruling power. 10 182 260
• Chu Yun Royal Family — Imperial ruling house targeted by the Chen Family’s rebellion proclamation. 182
• Feng Family — Associated with the empire’s founding and late imperial military leadership, including Feng ZhengTian and Prince Yu Feng Ting. 33 185 190
• Murong Family — Chen-backed commercial powerhouse controlling most of the empire’s economic lifeline. 92 193
• Myriad Scorpion Gate — Major Izumo sect later attacked by the Chen Family after the imperial conquest. 193 194
• Hundred Poisons Sect — Imperial ally during the rebellion that later betrayed the Emperor. 182
• Jia Ma Empire — Hostile neighboring state; its border forces temporarily coordinated with Izumo’s army during the Chen rebellion. 55 184