Really? And how did you say it in that old language? Would you like if we call the kid "snake" if he'll be a boy? Or do you have any other name in mind?

[Maybe Yamazaki won't be the best father in the world but he's one of the most zealous Dads in every existing world. Now the only thing they'd need is an actual child...]

And Keroro would be his very, very private and secret name.