I Spend My Life Force to Slay Demons, and the Empress and Saintess Fall for Me

[Fantasy, Eastern Fantasy, Succubus, Wild Imagination, Alternate World, System, Invincible, Multiple Heroines, Empress, Lifespan Consumption, No Saintly Hero, Neither Good nor Evil, Decisive and Ruthless] Jiang Mingzi accidentally transmigrated to a world where humans coexisted with demons and monsters, and from the start found himself a fake eunuch in the Southern Qin imperial palace. While attending to the Empress Dowager's bath, he was attacked by a demon hidden inside the palace. In his desperation, he activated the Lifespan-Consuming System. By spending his own years of life, he could draw all kinds of cultivation techniques as rewards and increase his power. He could also replenish his lifespan with the years of the demons he killed. From then on, Jiang Mingzi consumed his lifespan like mad, killing all manner of demons and monsters lurking in the imperial palace and throughout the capital. He also discovered that he was not the only person who had transmigrated. From [Three Stages of Reversal] and [Golden Light Mantra] to [Great Luo Buddha Hand] and [Dragon-Elephant Prajna Skill] Jiang Mingzi: I stand alone, the finest in the world, supreme above all. Empress of Southern Qin: Xiao Mingzi, you are a miracle without equal in all history, and the hope that lets me survive in this strange world. Saintess of Northern Yuan: Young Master Jiang, your literary talent is superb and your divine arts peerless. But your English really could use some work. I can tutor you anytime. Facing the countless demons and monsters in this world, Jiang Mingzi sheathed the saber at his waist and bowed to them with clasped hands. “Fellow cultivators, please stop a moment. Might I borrow some of your lifespans to prove my path to eternal life?” “Who are you?!” “I am Jiang Mingzi, director of the First Office of the Demon-Suppression Bureau of Southern Qin.” Also known as [So I Wasn't the Only One Who Transmigrated] and [This Is Utterly Backward and Out of Line]