The world turned into a deserted, lawless land, where the bandits roam freely, the innocent people suffer, and the demons are hidden on every corner. Sona Yuki travels with her family when bandits are attacked on them. All his family is killed, and he stays with a snake trail in his hand. When he is about to die, a woman comes up to him and gives him a choice: continue to live in this harsh environment or die now calmly. Yuki chooses life and garams, a woman gives her a second chance in life in exchange for her slavery. Garam-trader weapons and rental weapons, which travels from the village to the village for customers. Yuki sees how cruel and ruthless can be this world.