Uh, so. There's no easy way to do this, but.
Frankly, I've lost all desire to play this game. It just doesn't interest me anymore. I won't leave until the plot with Kamui and Fuuma is resolved, so obviously I won't drop him yet, but... Well, when it's done, I will. And as such, since he's only around for that one purpose, I'm sorry but I'm not going to play him for much any other reason. As for my other characters - Yuuto, Kazuki, and Arashi - I'm putting them all on hiatus.
As I haven't quit the game yet I don't see much point to dropping them yet (i.e, since I'm planning on leaving entirely, I might as well just do it then), and in case there are plots or something I'm overlooking, and out of sentimentality in Arashi's sake. They'll all still be "on the island," the four of them, but since there's no real point to any of them, they'll be quiet.
This isn't a hiatus notice or a quitting notice, yet. Just a "here's why I'll be quiet" notice.