Disgraced Swordswoman Battle

In the Emerald kingdom where humans live, the war with the Glome Empire where monsters live has been raging for 3 years As the fires of war become fiercer, the Glome Empire starts to retreat and is faced with impending defeat, so they try to negotiate a ceasefire. Negotiations for the ceasefire are carried out by both countries.
Negotiations continue with the advantageous conditions being for the stronger Emerald Kingdom, and the Glome Empire seems to be on its last legs. At that time, the Emerald Kingdom receives a sudden attack by the Glome Empire, and the King is slain. The Emerald Kingdom whose guard was down due to needing to negotiate the ceasefire could not fight back in time and the Princess was kidnapped. The real purpose of the enemy was to kidnap the princess. --Magical lethal weapon-- This is the secret magical weapon communicated to the kingdom. It is the ultimate weapon that is said to be able to destroy the world in an instant. The princess knew the magic to be able to start that weapon up. The princess faced unimaginable torture, rape, and abuse. In that situation, the strongest warrior in the kingdom, "Ruby Franthorp" went to rescue the princess. Female warrior! Rescue the princess before she is forced to talk due to the torture.