Might be something to it, apparently self harmers like cutters get a flood of pain killing endorphins and other hormones but what's weird is that it numbs their emotional pain too.
He should have ran with something more like a fleshed out romcom with Atsumare's Goryou and Tanaka.
But the ending for atsumare was very dissappointing so I'm not surprised this never really flew.
Here's hoping his next work can grasp the better parts of previous work while dumping the bloat.