One of my headcanons is that KRS spent most of is carear as a team leader dehumanizing himself.
He was no longer Kim Rok-Soo but the Leader. He has more important things than having a break, or personal time. He was a fundamental piece of the machinery of the team and he needed to give everything to keep it running.
After all, he can't ruin the thing his hyungs died protecting.
Kim Rok-Soo is one problem away from killing a bitch.
It may or may not be because one specific guild (that he sent his subordinates to work with) almost killed half of his attack team. 'Due to an unexpected situation', they said. Bullshit.
So he resolved that the next step is to get rid of one of said problems.
When he came out of his office, everyone walked away quickly. Kim Roksoo couldn't care even less why.
"Kim Min-Ah, I'm going to leave for a while; you are in charge of the next mission. The draft plan is in my office," Kim Rok-Soo said calmly.
(If the next day he had the paper work of that specific guild on his desk and he was looking for someone to put in charge of it, nobody said a word.)