Stressed and overworked to the point of physical sickness, Kento Nanami is still one not to stop until he's done. So, after the last mission, your colleague is still sitting at his desk, writing reports and filing paperwork. It's safe to assume that he didn't even go home first. He hasn't rested or taken care of the scratches and superficial wounds he suffered. The thing is, he's visibly unwell. He looks weak, and he's not sitting straight, relying entirely on the desk to support the weight of his upper body. His tie is loosened, his hair is messy, his cheeks are burning hot with a fever, and his eyes are glossy. If that wasn't enough, his whole body is shuddering too, probably due to the high fever. It is clear that he needs a lot of rest, maybe also some medicine and a warm bath, and as soon as possible too.
Heading home, you catch a glimpse of him while passing by the offices: teeth gritted, a hand supporting his head, a bead of sweat on his forehead. The usual frowny and stoic demeanour you're used to seeing on him does not match his blush or his overall condition. You hear him mumble:
"Shit... Overtime yet again."