Book Transmigration: The Cannon Fodder Starts a Business with the Male Side Character and Becomes a Tycoon

[A lazy college student who transmigrates into an ancient romance novel VS a “poor” young man sent away by his parents to gain experience] [He falls for her first + one-on-one romance + pure love] “Young man, want to start a business together?” Xia Sui, who transmigrated into a maid and is doing her best to survive, runs into Gu Cheng being “bullied” by the roadside on her way to start a business. Since she's found him, she may as well bring him along! But why is this adorable, sweet Gu Cheng acting more and more strange? “Wait, nobody told me Gu Cheng's family was this rich. When we first met, didn't you say you were so poor you only had two buns in your pocket?” Someone sniffles and complains, “How could I tell you the truth later? What if you thought I was too much trouble and left me behind?” Xia Sui falls asleep in her dorm bed, crying out that she's bored as the sound of novel clips plays on the phone of the girl in the bunk below. When she wakes up, she has transmigrated into a book, as the maid by the heroine's side who sacrifices herself for her in the very first chapter. A cautious, death-fearing Xia Sui who knows all the novel clichés starts planning how to save herself and get rich. Even though she tells herself every day to stay away from the leads and the main plot and focus on making money, the young lady is so kind! The young general in disguise as a man is so handsome and alluring, and the gentle scholar is amazing in the kitchen! How can she refuse to be friends with them?! [The heroine has no golden finger + no System + doesn't know the plot] [An entirely fictional ancient setting]