Sion stifled a cry. Yogiri had killed the pinky and ring finger of her right hand. He had only intended to kill one of them, but his training with such precise targets was lacking.

...

Sion did her best to calm down. She needed to think clearly so that she could analyze what had happened. She sat up and tore off her right hand with her left. The hand regenerated instantly, but her pinky and ring finger still wouldn’t move. She didn’t even need to test whether the same would be true of her ankle.

-Volume 4 page 179 and 180