Does the Female Lead Have to Be Cheated On? [Quick Transmigration]

"[Please support the official version, dear readers. Don't read pirated copies—every single word was painstakingly typed out by the author QAQ] This might be a slow transmigration story. [Slices include NTR plots, don't look for pure love. Each world has a main partner, all slices are 'clean', mutual attack leaning towards bottom, more lying down earlier on, not sweet or doting, logic is dead, simple-minded brainless writing. If you don't like it, click X. Will take leave if not updating, read friendly, mwah!] An oblivious honest person who charms thousands without knowing it vs. a dark, insane lunatic who loves slicing and has a sex* addiction. After Liu Qiu died, she bound with a syste...