[Disguised as a man, and her secret identity will never be exposed!!! Everyone is a native, with no transmigration + supporting characters have prophetic dreams]
Everyone in the capital knew that General Song's son was a sickly weakling who coughed whenever the wind blew. Countless doctors had declared that he wouldn't live past twenty-five. People in the capital were all guessing when he would finally die.
Song Shuzhang paid no attention to those who speculated and hoped she would soon be dead. She merely acted as though her days were numbered, since that let her enjoy some peace and quiet.
But strange events kept happening one after another in the capital. No one could have imagined that the so-called sickly weakling was the hand behind it all.
Much later, although Song Shuzhang was no longer in the capital, people there still went pale at the mention of her.
(The protagonist will have a romance, but it won't work out, and the protagonist will marry.)