I loved the two little twins running in there. I wish they showed Kiri a little more, but I was nearly estatic to see that Kanaoko was with Seki and pregnant, while Ochiai was possibly alone and teaching Narumi's kids that he was their father.
Billy has a family, if you look closely at the pictures when it goes to Kiri, it has a family portrait. I was sad to see it end but happy that it was a good ending, no matter how much it was rushed.