I keep on rereading this and everytime it hits me that their relationship is quite painful. No one else will see them together - no one knows about Mizuki so it looks like she's on her own all the time. And another thing - what happens when she dies? What happens to Mizuki? Does she pass on with her or does she remain?
ANYWAY ---- I will probably keep on rereading this because it's so awesome and cute :D