Lexia Sinclair is in a party of “adventurers” who attempt to conquer unexplored lands, among them a girl who is known as a ” Hero”. She has the “recovery” skill, and was in the party with her best friend, the hero Meik, when she was told by one of her companions, Act, that she was no longer needed in the party. Her heart was ruled by despair and she was plunged into the abyss, but she failed to die immediately and through the pain, she heard the voice of a “girl. The girl’s name is “Lochness the Wailing Cat” – one of the kings of demons that rule this world.