Villains and their calculating minds, their strong desire for power, and the lack of empathy. It is all whole, having no room to make mistakes. However, there is the gravest one they always fail to avoid: conquering a world full of alike. Ashgrim's most hunted assassin desires to overthrow the Valkyrie and her new world. She was well reconciled with the fact that she'd have to bring terror and do whatever it would take. But on the way, she meets a group of cruel and uncontrolled youth with the same goal; and a particular girl who she mutually despised. On the way, they meet unexpected obstacles surrounding twists, romance, combat, temptation, and the unknown.