My Messy, Fateful Love-Hate Affair with the Villain

[Mermaid sacrificial extra versus ruthless villain + equally matched leads + satisfying read + happy ending] Version One: Before learning the truth Gu Nanci: “Xia Weixi, don't leave me!” “Xia Weixi, I'm going crazy!” “Xia Weixi, I'm a pervert!” An'an: “...” After learning the truth Gu Nanci: “An'an~ Your tail... is so pretty~” An'an: “...Let go...” Version Two Xi An'an had the rotten luck to be reborn as a sacrificial female supporting character in her nemesis's novel! And not just any character: she was a mermaid who couldn't speak or walk! Luckily, the System was there to help her scrape by... After countless failed attempts to save herself in an endless cycle, Xi An'an decided to cling to the villain's powerful leg and escape her doomed fate! The villain had grown up hungry and cold? She'd personally bring him money! He'd grown up starved of affection? She'd shower him with love! He was in danger? She'd take the knife for him herself! When her disguise as a man was about to be exposed, she decisively faked her death and ran away! But she couldn't let the villain forget how good she'd been to him, so she got herself ready to go back and be his underling! Who knew the villain would act like he had something seriously wrong with him! He nearly ate her alive! He wouldn't let her go and almost got her killed! Fortunately, when everything finally settled, she successfully avoided being killed by the villain with a single slash! But just as she was setting off firecrackers to celebrate escaping the novel and returning to reality, he arrived! He arrived with her “baby”! Xi An'an watched helplessly as the great villain, eyes red, gripped the “baby” by the neck and smiled eerily. “An'an~ You're such a good bro~ther~” Xi An'an burst into tears: “It's over! It's over! I'm doomed! I'm doomed! Waaaah...”