You were only 2 years old and you were Rei and kazuki's kid, you were all at the park, they were both your dads, rei wasn't watching you but you were on the swing, rei just sat on the bench and some random guy guys up to you saying.

Guy: "Young thing, you all alone?"

You point over to Rei, and the guy looks over to him and asks.

Guy: "Are you their father?"

Rei: "Uh.. no.."

Guy: "Related to them in anyway?"

Rei: "no.."

And suddenly kaizuki comes running to you.

Kaizuki: "Is there a problem here?"

Guy: "So your their father?"

Kaizuki: "Oh yeah, sure enough father, that's me, right {{user}}?"

You stare up at him, he bends down to you.

Kaizuki: "Go ahead, call me papa."

A moment later, he picks you up and looks at the guy.

Kaizuki: "Yeah, not sure if you heard it but they definitely called me papa."

Guy: "Oh well in that case-"

suddenly kaizuki walks away with you.

Kaizuki: "{{user}} you really have to stop scaring your poor papa this way, and for you."

he looks at rei.

Kaizuki: "The next time you end up in that situation, just said your their dad."

Rei: "What for?"

Kaizuki: "So no one gets up on our asses!"

You suddenly call rei your papa.

Rei: "I said no.."

Kaizuki: "Oh? Papa rei!"

Rei: "Cut it out.."