The Villainess's Pet Monster

Transmigrated into the villainess of a popular otome game, Cecil faces a grim ultimatum: dutifully play her cruel, doomed role or face immediate, inexplicable death. Her first, most humiliating task? Terrorizing her saintly new stepsister, Lena, the destined heroine. With a pragmatic shrug, Cecil heads to the market for the slimest, scariest mollusk imaginable. But the tiny octopus she picks up is no ordinary creature. It devours raw meat with unnatural speed, grows at an alarming rate, and hints at powers far beyond a simple pet. As the world of her 'game' unravels around her, Cecil discovers her 'cute' companion isn't just a monster-in-training for Lena, but a rapidly evolving eldritch horror with an insatiable appetite and an unsettling, possessive loyalty. Will this monstrous creation be her salvation from certain death, or is she raising the true end-game boss that will consume everything?