Weren't You Supposed to Be Just a Tool?

After Lu Fuyu died, she transmigrated into a novel about a villainous male lead. Her mission was supposed to be playing a disposable supporting character, but the System slipped up and gave her the ability to transmigrate repeatedly. When Lu Fuyu transmigrated for the first time, the male lead was a five-year-old child. Lu Fuyu's assigned role was to be an extra who tossed an empty bottle of safflower oil into the trash. But now, she looked at the malnourished child in the mirror, then down at her own lower half, and was at a loss for words. Lu Fuyu: …Could you at least explain how I ended up as the five-year-old male lead??? She learned her lesson and decided to make the best of things. She would protect the male lead, care for him, and help the flower of the nation grow up healthy. The next moment, with a bang, Lu Fuyu clutched her bruised knee and hissed in pain. She snuck over to rummage through the trash, picked up the safflower oil someone had thrown away, and squeezed out a tiny bit to rub on her wound. ** The second time Lu Fuyu transmigrated, the male lead had grown into a refined fifteen-year-old boy. Her assigned role was to be an examinee sitting in the same exam hall as him. But now she was a hundred and eight thousand miles away from the male lead... as a wild vegetable. Lu Fuyu: ...Last time I was at least human, or no, a soul. This time, I'm not even a soul! Lu Fuyu decided to settle into a quiet life, faithfully stand her post, and live out her days as a wild vegetable. But... why had the male lead, who was on the other side of the ocean, come all the way here?! And why was he secretly watching her? He even wanted to transplant her into his home so he could admire and use her! ** The third time Lu Fuyu transmigrated, the male lead was an eighteen-year-old college student. Her assigned role was to be a classmate who had a crush on him, secretly collecting information about him and following him around. The good news: this time, she was finally human! The bad news: only half of her had transmigrated. The other half had become a little robot in a roadside claw machine, the kind that could talk. The male lead easily fished her out and set her beside his bed. By day, she clearly had the mindset of someone raising a child, but insisted on acting like she had a crush on the male lead. At night, she made garbled noises like a malfunctioning program from the bedside: "Late night, lonely and restless~ All alone, sneaking a little snack~ Extra-spicy grilled fish~" Theme: Everyone has the right to be loved