This review may contain spoilers

Too bad that this manga is so forgotten. It has lot of potential!

The story is about Masumi and partially about his younger brother Yuuki. Masumi one day wake up with bleeding hand and strange things begin to happen. He encounters strange winged man which claims to be his protector for unknown reason. Also, the strange men are after Masumi, even his brother gets threaten. Soon to his school is transfered anemic girl Mary and her overly protective brother Midori. But not so long after that Masumi has to deal with threat and treason.

Art is really a gem, I love it. It was so enjoyable to look at the art, it was clean.

Big minus is that the story felt rushed, I think it would deserve more episodes. Some parts felt really confusing, I don't understand some things.
Such a shame that this story have only 10 chapters, I would like to have more and see more of the characters.
So prepare that there will be parts you won't understand, but it still worth to read.

Oneshots

Hanamen-gari Iden - To be honest, I don't get how this oneshot is related to the story, if felt completely ripped from the context of the story.

The Greatest Secret - This one I really enjoyed, because of this I understand a bit more of Mari's and Midori's part of the story, because this one is about their past.