[It was instinctive; the moment Diana mentioned needing an injury to test it on, Midii's hand fell to her right arm, covered with a thin, blue sleeve. The bruise underneath didn't hurt very much, but she was never one for letting anybody see her pain if she could help it.]
It doesn't look like any first aid machine I've ever seen before.
video;
It doesn't look like any first aid machine I've ever seen before.
How...does it work?