How Did All This Blood Qi Turn Me into a Succubus?

According to the history books, in the first year of the Xia calendar, the Battle of Yashan ended with the Song dynasty's remaining forces utterly annihilated. The last emperor, Zhao Bing, would rather die than surrender, and a hundred thousand scholars plunged into the sea together. The Song dynasty fell. As a celestial dog devoured the sun, an eerie darkness swallowed the world. Countless monsters, once found only in myths and legends, appeared before humankind. Evil spirits, mysteries, and horrors emerged from the dark night. From that moment on, the age of deepest darkness began...