How Would You Know the Female Side Character Would Rise to the Top Without Transmigrating into a Book?

Can you really transmigrate just because your tablet smacked you in the face? And transmigrate into a novel about a live-in son-in-law, no less, as the scumbag protagonist's fiancée: a disposable female side character he uses and then throws away! Reading it was fun, but living it is infuriating. Fang Qing just wants to shout, “You big-hearted jerk, keep your hands off me!” The people you humiliate and beat down on your way to a comeback are my family and friends. They’re real people, with feelings and lives of their own. What gives you the right to use them as stepping stones? What gives you the right?! From now on, I’m in charge of my own story.