When My Beloved Pet Became a Villain

I was reborn as an extra character in a novel—a minor role whose soul would be drained to death by the villain. If you were the one reincarnated, what would you do? For eighteen years, I suffered endless abuse at the hands of my family, treated as nothing more than a slave. Fortunately, before my parents could sell me off to the villain just as they did in the original story, I managed to escape. I then spent a short but happy time with Momo, a stray dog I met in a rural village. But three months later, my beloved puppy suddenly disappeared! To make matters worse, I was captured by my family and handed over to the villain. Just as I resigned myself to death— "Why are you so surprised? It's me, Momo, your puppy." My beloved pet has become a villain? And that very villain is my fated counterpart? This series is a promotional one-shot based on the novel of the same name.