**

The seal of Kunlun collapsed and Tiangang's defense line was in crisis. The alien fleet's wormhole reopened, and the alien army came to the city. Humanity's most powerful weapon "Nantianmen" - reverse engineering for three thousand years, has only reproduced 12% of the power of the Siyuan Armor. And the four Origin Armors, Qinglong, White Tiger, Suzaku, and Xuanwu, which were forged with spiritual energy by the Chinese ancestors three thousand years ago, each have a combat power more than a hundred times that of Nantianmen. Shen Mu, a cultural relic restorer, had a dragon mark on his left arm that had been burned since childhood, but he didn't know that it was the mark of the Qinglong inheritance. Zhao Wuxie, a retired special forces soldier, had his mission betrayed three years ago and all his comrades were wiped out. He was the only one who survived - and became a weapon with only the instinct of revenge. Tang Wanqing, a postgraduate student in archeology, touched a bronze mirror in an ancient tomb in the southern border. The memories of Zhu Xi, the successor of Suzaku three thousand years ago, flooded into his mind. Xuanwu, a silent young man with pale golden vertical pupils, his entire clan was slaughtered, and his weapon spirit has not spoken for three hundred years. Four people, four Siyuanjia, and four Tiangang defense line nodes. The complete body of the alien commander is condensing on the back of the moon. The Four Pillars of the Monarch - Thousand Faces, Burning Sky, Frost Prison, and Rifting Sky - have penetrated the earth. Mind controllers turn your closest comrades into your deadliest enemies. The day the Tiangang Defense Line is activated on 4/4 is when the alien mothership arrives. How much does it cost to unify the four images? Bronze cast bones, spiritual energy as the blade, Chinese mecha, the origin awakens!