Perfectly Obedient [Quick Transmigration]

An Ning is a spirit born by chance from among countless Systems. Innate trait: 100% obedient. That means she will follow any instruction from her Host, without question. And every one of her Hosts is considered the most twisted of them all by the mission-takers. -- [The worlds may change; here's an example] World One: The Sickly Young Master's Virtual Lover "Are you truly loyal only to me?" The pampered young master speaks in a husky voice, gently wiping a short dagger in his hand. "Of course. You are my master." An Ning tips her head back of her own accord and rests her chin on the blade. He would only need to move it a tiny bit farther to easily pierce her throat. "Enough." The young master's eyes darken as he shoves her away. "Don't ever do something so self-destructive again." "Okay." An Ning replies without a hint of emotion, like a cold, unfeeling machine. Years later... "Do you have any idea how much I love you?" The young master grips her shoulders with a near-madness, the frenzy in his eyes about to spill over. "I don't." The peerlessly beautiful girl pauses, then says each word slowly. "But I'll try to learn." World Two: The Wizard's Little Sidekick "What kind of monster are you? Stay here, and don't follow me," the young wizard warns her. "Okay." An Ning stands without a word in the depths of the forest, staying there for three days. ...It seems she has been abandoned. A trace of disappointment flickers in An Ning's clear jade-green eyes, while her System's detection program continues to track the Host's location automatically. The young wizard, now far away, realizes that an unknown spell is following him. He follows it back to its source... And discovers that the girl he had casually told to stop following him is still standing where he left her, waiting obediently. The girl looks frail and tiny, her face pale as paper. The moment she sees him, she faints from hunger. How could anyone be... so obedient? -- P.S.: 1. Because the female lead is too obedient, she often hurts herself physically (not emotionally). The twisted big shots are all separate characters. 2. The female lead doesn't understand many emotions, so she doesn't realize when she feels bad. (She slowly goes from an AI to a human.) 3. A sweet story about healing each other Theme: The poor little ones you once bullied all become exes who chase after their wives