During an archaeological excavation on the outskirts of Luoyang, Gu Nian, a natural warrior, accidentally touched an ancient jade pendant engraved with a unicorn pattern, and instantly awakened her past life memories - she was actually the unicorn princess of the Yan Kingdom thousands of years ago, and she signed a symbiotic contract with the mythical beast unicorn. At the same time, she has a mysterious SLG strategic system in her mind, which can recruit heroes, build cities, and train troops. Descendants of enemies from the previous life lurked in the archaeological team trying to seize the treasure. Gu Nian, under his natural appearance, relied on the system step by step to counterattack from the oppressed young warrior, and gradually conquered the lost old Qilin army, and discovered that the Qilin beast had been reincarnated into a mysterious young man in the modern age. While using her archaeological knowledge to excavate ancient tombs and obtain resources, she used the SLG system to develop underground forces. She eventually rebuilt the Yan Kingdom in troubled times and guarded the world with Qilin.
