Who is anonymous? (Volume 1-5 is the latest issue)

Publisher: Shogakukan
Author: Bell Yamada
Size: 112mm x 174mm
Number of books: 5
Language: Japanese
Category: Shonen manga, manga
Latest publication date: 2015-06-18

Synopsis:
Mystery of memory loss to explore yourself!
Now, I have three troubles.
One thing, if you notice it, be here ...
Two, there is no memory ...
Three, a girl with a knife is in front of me ...

When I regained my consciousness in a certain place, an unusual scene was spreading in front of me. The stage is the near future of May 17, 2024.
The story about the mystery and memory of "I" begins ...!