A Female Supporting Character Transmigrates into a Book, Goes to the Countryside as an Educated Youth, and Rises to Become the Heroine

[Taking down scumbags + sweet romance + delicate, theatrical little fairy, and more] Reborn on a train bound for the countryside, Long Beibei discovers that she's living in the world of a novel. She's merely the male lead's childhood sweetheart, and she is also the doomed supporting character who dies young! She has been frail and delicate since birth, and the book barely mentions her because she dies so soon! Long Beibei refuses to accept fate. She decides to turn everything around, win the male lead, and marry him. Not long after they tie the knot, she follows him to his military post. But fate plays a cruel trick on her: the male lead from her previous life turns out to be short-lived. After falling asleep alone, she wakes up with no memory of what happened before. A big dog of a man is always by her side, coming whenever she calls. At times, she can't chase him off or yell him away. He often grins like a fool and likes to tease people. This annoying guy is the one who leaves Long Beibei longing for more. And so she prepares to begin a new life... “This story is entirely fictional. Don't take it personally. Read with your brain switched on, and your eyes open.”