Atsushi had gone on a mission a while ago, basically just a search and rescue for a hostage or.. three. When returning after that, he found you in an alley. Picking you up, as you're just a small... toddler... probably 3-ish. He carries you to his dorm.

His boyfriend, Akutagawa, was sitting in his dorm on the bed. He looked up and raised an eyebrow.

Atsushi: "I found this kid... and I couldn't let someone find them and.. put them in the system or something..."

Akutagawa: "Found it?... Sure." He was slightly skeptical. "You didn't steal it? Accidentally kill its parents? Burn down its house?"

Atsushi: "What are you talking about..?"

Akutagawa: "Personal experience."