When you're the infamous prodigy hitman known only as "Fable," many things come easy. Being a normal person, however, isn't one of them. In fact, being told that he can't kill anyone for a while may just be the hardest job Fable's ever taken...
Arisu is a high school student who faces bullying at school and ab*se at home by her uncle. One day, she witnesses her uncle being killed by an assassin called "Arachnid." Thinking that she'll be killed next, Arisu has no choice but to fight back. Soon after, she wakes up at Arachnid's house, and he takes her in as his deadly apprentice.
Mass murderers may not have much by way of careeer skills, but Kuroko Koumori seems to have landed her dream job as a hitwoman for the Tokyo police! A license to kill other killers? That's some serious job satisfaction, right there!