As a Foundation Establishment Cultivator, I'll Be Invincible in a Western Fantasy World

[Single Female Lead, Coming-of-Age Romance\Sword Cultivator\Playing the Fool to Fool the Tiger\Western Fantasy] I transmigrated to an unknown world. From the start, I had a silver-haired, red-eyed little girl by my side. I cultivate using spiritual energy, and you’re telling me this is a Western fantasy world? [Hero]? How come you can’t even beat me, a Foundation Establishment cultivator? [Demon King]? You seem just as weak. Well, I can’t use this world’s elemental powers, but it seems no one here knows how to use spiritual energy? In that case, I’ll graciously accept the spiritual energy of this world. My enemies: Why can he cast such powerful magic without chanting a spell? Jiang Yin: Sorry, it’s a mysterious power from Eastern fantasy.