In summary, Emma has been living in the city and is the granddaughter of one of the city's founders, the "Black Widow". When her mother dies, Emma is forced to move back home. She carries the secret of her family background as well as living in a city where men and women are separated to maintain peace in a chaotic world. Emma's grandmother, the "Black Widow", rules the city with an iron fist, but Emma hides a secret that could jeopardize her safety. The city was built by three widows during a time of chaos and war. However, not everyone can follow the strict separation between genders in the city.