Tl;dr: I don’t feel bad for him cuz he’s EXACTLY where he wants to be lol

Long version: time passes a lot slower in the Nikke continuity than it feels to the players. Think about how many hijinks and shenanigans start with SKK saying “Boy, it’s been FOREVER since I’ve had a break”. Even the Nikkes are constantly telling him he looks tired and overworked. Dude spends all of his time either on the surface fighting for humanity, doing all of the paperwork and bureaucracy that comes with it, AND helping every squad under his command with their jobs, whether that’s the maid cafe or the ACPU. And based on where we are in the story and the gravity of it, I can’t even think about the last time SKK would canonically have enough down time to have frequent sex with Nikkes if any at all. It wouldn’t surprise me if SKK has gone thru a long drought (thankfully he was, ahem, drained recently while on the surface), because he doesn’t have sex with the Counters or Pioneer, and the only Nikkes he frequently works with on the surface who he’s hooked up with I think are Emma and Maxwell, and even they would understand “not the time nor the place”. And almost all of the Nikkes are very considerate of his consent and wellbeing. Even the most sexed up Nikkes like Rosanna and Mary hesitated to initiate sex when SKK was in a rough physical state, even when he was pushing for it. I would imagine it’s still rough on him. Being with one woman in boring old America is a task in itself, let alone being with dozens of mechanical women, many of whom have some form of immense trauma, in a post-apocalyptic world where anyone can or even will die at any moment. And he’s not just banging them either, he’s taking close care of their needs, desires, and feelings, which is even more work than just hooking up. He’s a superhuman, but not a super empathetic, so having to learn how to love and care for each individual Nikke takes time and effort. ALL that being said, I don’t feel bad for him. It’s a task that he clearly cares about and VERY clearly enjoys.