In Year Twelve through Year Fifteen of Huanyu, the population of Huanyu Kingdom's territory surpassed five hundred million.
During this period, Huanyu Territory also accumulated strength and expanded steadily.
In Year Twelve, the White Lion Cavalry opened up the Eleventh District. Cao Ren of the Tiger and Leopard Cavalry Legion broke through to Eighth Tier Legendary during the battle against the Anti-Huanyu Alliance.
In Year Thirteen, Huanyu Kingdom opened the 68th layer of the Otherworldly Abyss and established Ill Omen City. The Ill Omen Legion launched an all-out war against the demons of the Crimson Purple Demonic Domain.
Not long after the invasion of the Crimson Purple Demonic Domain began, Huang Yu's Abyss Body broke through to Eighth Tier Legendary without encountering any bottleneck.
From then on, the Abyss Body went to the Crimson Purple Demonic Domain to take command, and the Demon Lords of the Crimson Purple Demonic Domain no longer dared show themselves recklessly.
In addition, Rommel, commander of the Dusk Raiders Legion; Yiskan, commander of the Comrade Cavalry Legion; Kael, commander of the Sacred Decree Knight Legion; and Soradin, Scroll Scholar of Solomon's Fortress, all broke through to Eighth Tier Legendary in succession that year.
Mao Jiang, director of the Equipment Forging Center under the Magic Pattern Research Institute, became the second Saint Professional of Huanyu Territory.
In Year Fourteen, the Void Warrior Legion and Phantom Blade Warrior Legion went to the Twelfth and Thirteenth Districts to open them up.
The Ghost Walker Legion officially became the fifth legion of the Garrison Army, enriching Huanyu's intelligence, assassination, special operations, and other capabilities.
That same year, Valkyrie Alvit, Helviere, Lai Wei the Arcanist of the Crown of Mysteries, Yan One of the Eighteen Riders of Yan Yun, and Pang An of the Cursed Legion entered the Legendary level.