SD Gundam World: Sangoku Souketsuden - S01

Destiny brings Liu Bei Unicorn Gundam together with Guan Yu Nu Gundam and Zhang Fei God Gundam, and together they vow to save the world. Constant war has left once-great nations in ruins, and just as hope for recovery appears, a strange plague called the Yellow Zombie Virus spreads. Infected victims lose their minds and turn violent, forcing survivors to take shelter in walled cities. These cities rely on a dwindling energy source called "Trinity," which has deepened divisions and sparked unrest. Each city is ruled by a lord, and after the previous ruler’s death, the tyrannical Dong Zhuo seizes power. United by fate, Liu Bei and his newfound allies set out to change the world. Their determination will reshape history, marking the beginning of a new era.