Long ago, monsters were banished from the surface and sealed underground. One day, a human found herself in the realm of the monsters and slaughtered those she met. However, she was spared on one condition: that she would break the barrier and help the monsters retake their lost surface. With the Happiness and Peace of Mind Committee at her side, Miku seems unstoppable. But for two unfortunate twins under her tyrannical rule, they face some hard decisions about what they stand for. Is it better to survive in a society where you can be executed at the deop of a hat, or to leave behind the only family you have left in the name of freedom? (Or, Miku mentions "Undine" in a song and it inspires an undertale x vocaloid crossover) DISCLAIMER: We do not own any of the images used in the cover, or the characters used in this story.