After I Used and Dumped My Exes, They All Came Looking for Me

[A melodramatic package of tropes from my early days. I personally think it's too much, so I've buried it as an embarrassing old work.] He Siyan had a former-lover System. He became the cinnabar mole in the male lead's memories, sweet-talked his way into winning the down-on-his-luck male lead's heart, then dumped him after taking his body and stealing his heart. Top: "What did I do wrong?" He Siyan (coldly): "You did nothing wrong. I just want to cheat on you." He was so wonderful that everyone loved him, yet so ruthless that everyone grew to hate him. The cinnabar mole became a wound in the heart that would never stop bleeding. He completed his mission and withdrew, waiting for the true, good, and beautiful protagonist to appear. Withdraw... Why can't I withdraw?! The top, corrupted and turned demonic (pinning him down in the bathtub and biting him): "How can you talk and laugh so calmly while killing me?" A trembling He Siyan: "Let's talk this out!!!" World 1: The Poor Kid I Dumped Struck It Rich World 2: The Overbearing CEO Lost His Memory and Became My Housekeeper World 3: The Wealthy Older Man Proposed to Me, and His Kid and I Got Our Happy Ending World 4: After I Was Killed to Prove His Dao, I Became the Strongest God in the Celestial Realm This story is also known as After Becoming the Male Lead's Ex, We Got Back Together; Our Utterly Miserable Road to Reconciliation; My Boyfriend Turned Dark and Locked Me Away Theme: Luck always favors kind people