Shuichiro rescued Kohaku, an angel and she wanted to grant him a wish. The problem was, Shuichiro couldn't think of anything to wish for. So she moved in until he could think of something. Kohaku and Shuichiro have become pretty close, but God wants Kohaku back in Heaven.
Kohaku goes back to Heaven and can't understand why she feel so sad. She wonders, is it because of Shuichiro?
I'm really loving this series. In each volume, I find out more about the characters and I can't wait to find out what happens next.