[How is that a problem? Sherlock sure doesn't see it. After all, he's kind of Iris's papa too, in a way. In fact, if anything, he's more of a papa to Iris because he's been at it for ten years already.]

Mmm, right. He did so wish to take her along to Japan, but he couldn't, obviously. [OBVIOUSLY...] Iris was about a month old when he left her with me. I'm certain that he thinks about her every day, because that's the sort of man he is.