A mysterious mastermind single-handedly releases 206 of the most dangerous prisoners around the states. When the prisoners rampage New York City, the police helplessly watch as a young boy with a katana appears. His mechanical arm has a countdown from 206; what is his purpose?
The criminal group "Bones" is made up of a bunch of people with ridiculously high murder counts. Like, to the point that it comes across like the author is being casually flippant about serial killings and just treating it like you would a video game kill count, with the highest scores indicating the strongest and most psychopathic opponents. It feels gauche and insensitive. Anyway, Kanae Haruka is even more overpowered than all these overpowered criminals and is able to defeat them in single slashes of feir sword. Fe is also way too clear-eyed and innocent-acting for the level of violence and horror that fe causes. Fe doesn't come across as righteous, and honestly doesn't even come across as a real person. Instead, fe comes across as a video game protagonist on a quest to destroy the enemies within the game. The whole atmosphere just feels detached from reality, which doesn't lend itself to a great story (especially not one where the author presumably wants us to feel something for the protagonist's backstory). The author clearly wrote this with the hope that it would be expanded into a series, but I think any continuation would end up shitty, repetitive, and uncompelling beyond the most shallow appeal of seeing death-by-sword.