Wow, I am stunned! The picture tell the story it's self to the viewers! It is beautifully done by the way!
For my guess I would say that Hichigo (Shiro?) came back to have a little fun with his King.
You can't really tell what Ichigo is feeling right now, since you decided to not draw his face and I love it! And Inoue may look a tad bit stupid, but I think it makes the picture even more magical and playing in the characters! Mysterious you could call it, maybe? :>
Wish Kubo-sensei could something like this :'D
(Sorry for my English! I'm Swedish and yeah... my grammar suck!) ^v^