Unrivaled Miracle Doctor and the God-Defying Demonic Consort

She is the top double-system special agent with unusual powers. After she is reborn and travels back to the past, she suddenly becomes a good-for-nothing aristocratic Little Lord in a third-world country. From then on, she turns from a good-for-nothing to a genius, making humongous progress in her cultivation and can very easily obtain medicine refinement enhancements. Even beasts and fiends bow down to her. It's fine that she is forced to disguise as a man, but why do evildoers still harass her, even though she publicly announces that she's a male? From that day onwards, the cold and mysterious Holy Master becomes a bitter wife-chasing slave! An evenly-matched cat and mouse chase begins between the two of them...