From the Start, I Handed Over a Ghost Realm, and the Nation Told Me to Become Emperor

After dying, Jiang Yi transmigrates to a world where the supernatural has descended, and discovers that he can contact the Dragon Kingdom on Blue Star through his own memorial portrait. “Chief, I have vital intelligence. The supernatural entities on Emerald Star have discovered Blue Star and are researching a way to cross dimensions. They intend to descend upon the Dragon Kingdom.” “Understood! Attention, all units: mobilize every available resource. First, ensure Jiang Yi survives and help him grow stronger!” Jiang Yi sends back ghost crystals. The nation makes a breakthrough in neutrino technology and rewards him with technology to enhance ghost crystals. Jiang Yi sends back soul artifacts. The nation makes a breakthrough in alternate-space technology and rewards him with the Quantum Banner of Ten Thousand Souls. After Jiang Yi conquers a ghost domain, he turns it over to the nation, which first develops a digital army of the dead. Years later, the Dragon Kingdom has unified the world. Armed with neutrino-powered aerospace Ghost Mothers, fully AI-controlled Ghost Shadow swarms, Ghost Eye cruise missiles capable of both reconnaissance and attack, and Dongfeng Six-Dimensional Devourer missiles, it awaits the supernatural invasion!