Slight TW: Self-harm
Whew, my first comic in a long time!
This entire thing took me a week, but I'm happy with the outcome with it, even if in the beginning the reactions/anatomy/etc weren't as good as the later panels :)
So here's the story behind this:
Blue works at JR, so therefore he's often there... working. He's managed to struck up a friendship with Ink, and is close enough to know some darker parts of the artist.
Take note of Ink's eyes in every panel - notice how dull they are in the beginning, but how in the end they're as bright and tie-dye like in the end. Usually, Ink isn't allowed to drink any of his vials due to their side effects that can become dangerous (i.e. happiness gives him the jitters, anger makes his heart race, etc...), so often he's left emotionless.
Most people, especially when working alongside him, actually have a negative opinion on Ink - some ranging from mildly annoyed from his lack of empathy (like Dream), to actually hatred (Like Poise, the snake, and Vortex, the fox). Even despite not able to feel emotional pain, it makes Ink feel something that just... brings him to the impulse to hurt and feel something.
More often then not these feelings that are brought on are a random mix, but hey, Ink's mindset is "better then nothing".
Blue found this out by accident one day when Ink had been bleeding. More often then not people pass this off as injury from missions, but Blue knows injuries, and he knows Ink and whether or not he's been on missions - and Ink was given a small break, and they were recent, so... you can see how the dots connect.
So, while Blue has tried, Ink can't quite break the habit since it's so deeply ingrained. But - Blue still tries his best, making it so that Ink doesn't scar or risk infection.