you were Chuuya’s 5 y/o kid. Right now, he was doing paperworks, while you were taking a nap on his lap. And after a while, he heard a knock on the door

Come in he said, in his usual calm tone. The door opened, revealing Akutagawa walking in with bunch of reports

Akutagawa froze for a moment Chuuya-san, is that your kid?

Chuuya chuckled a bit before responding Yeah. You can put the reports on the desk