Chapter 1
Hatake Kakashi isn’t sure what it is about Mizuki that catches his attention. The man’s a pathological liar, a substandard ninja, has a totally undeserved superiority complex that seems to be rooted in an inferiority complex and has a habit of manipulating the unsuspecting. But, well, he likes Mizuki’s soft (if fake) smile, and he’s self-aware enough to realize he’s a bit narcissist so the hair is a turn-on, and really he’s not a nice man when it comes right down to it. So when Mizuki talks a civilian man into drinking a little much and starts in making passive aggressive little comments that will leave the man cringing for months afterwards when people inevitably make fun of his inability to hold his drink, Kakashi swoops in and hauls the now-wary Mizuki off to his apartment to turn him over his knee.
He would stop there, because while Mizuki definitely needs his ass warmed, Kakashi isn’t a rapist, except that Mizuki reacts to being spanked like most react to foreplay. Even a mess of tears and sobs, he’s aroused, and it doesn’t take much to convince Kakashi to tentatively turn it into more.
And it helps. For a while, Mizuki is nicer for real, but he backslides. Kakashi is gone on dangerous missions a lot. When he’s gone, Mizuki backslides. It’s a vicious little cycle, really, but it suits them. Kakashi comes back filled with violence to a Mizuki who needs discipline to thrive, with the end result that Mizuki gets spanked until he’s sorry and Kakashi is on an evener keel, and they both do better for a while after that.
What breaks it is a particularly long and boring B rank mission. It’s not dangerous, barely deserves to be classified as a B rank, but it is long. Long is not good. Kakashi comes home to find the village in an uproar about a missing scroll and Minato’s brat. From all he’s heard, Minato’s brat is a prankster, but not mean or selfish, which makes him doubt the accusation (wherever it came from). But the scroll is pretty serious, full of kinjutsu, so he wanders out to check some areas a boy might try to hide and learn such things.
He is… less surprised than he should be when he finds Mizuki spewing self-aggrandizing filth and trying to kill Minato’s brat and his teacher. Taken aback enough that he just observes for a few moments, but unfortunately not surprised.
Then Mizuki aims at Minato’s brat again, while the brat has frozen up in shock, and the teacher (Iruka, he thinks?) covers the boy even though the move is stupidly self-sacrificing. A jolt of anger and shock jumps down his spine, pushing him to act, and Kakashi deflects the oversized shuriken and grabs Mizuki by the scruff of the neck. Mizuki squawks, starts to struggle, then sees who it is and wisely goes limp.
Minato’s brat and his teacher stare at them in shock, having turned to look when no weapon met flesh.
“Excuse me. This is mine.” Kakashi says tightly, angrily. “Return the scroll to the Hokage. I’ll take care of this.”
He leaves them staring after him wide eyed. Yes, he’s going to have to turn Mizuki over to T&I, but first he’s going to make his little fool regret his choices thoroughly. And maybe it won’t be so bad to visit his lover in a jail cell if it keeps him from making choices this stupid.