I'm in Tokyo Reverse Blade

The way of the sword is the way to kill. When the blade comes out, the soul is destroyed. With the reverse blade in his body, he can cut off his original self and his murderous intention, destroying the nothingness. ......... So, you can't kill people? In the comic world, if you have any favorite anime, you can post them. Also, the introduction is a bit discouraging. ORZ