This is a short story told by Mao, a girl fighter who wants to be the strongest, and her partner and childhood friend, a boy named Theo.
The story is set in Anatila, a kingdom that has calmed down after a territorial dispute. A huge labyrinth has been discovered on Blankmont, a sacred mountain in the northern part of the kingdom.
Mao and Theo, the protagonists of the story, traveled to Anatil to explore the sacred mountain in order to train and become stronger. However, the discovery of the underground labyrinth has filled every living space in the country, and the two find themselves in Yule Koram, a town known for its unsafe conditions...
There, many men are looking for an opportunity to have Mao's healthy body...