It goes about two kids who die at the exact same time in two completely different places in the world. But their spirits remain and contact several people they are drawn to, due to some sort of compatibility that allows these humans to see them (they can be seen by humans who have a twin-sole somewhere). As they interact with the humans, we slowly get to know their story and the reason for their deaths, and the kids, who are, as a matter of fact, twin soles themselves, start getting closer to each other.
Story
The plot is just PERFECT. Not just because the story is original and breathtaking, but because it is masterfully structured.
When I first started reading the manga, I was a little confused. The girl and the boy interacted shortly with several characters, one character per chapter. It looked as if the manga was going to be structured in individual and closed chapters, with a subplot in each. Each subplot was aimed to trigger something in the memory of the children, thus driving the main story forward. But some of the chapters had an open ending that didn´t leave me satisfied. Some of the chapters left me thinking: And? That´s it?
But I was so wrong. Every unclosed issue is resumed latter, and everything comes together perfectly as you keep on reading. Every single encounter with every human the kids interact with is there for a reason.
I think I´ve never come through a manga plot that has been so well thought through.
Art
I wouldn´t say the art is "beautiful". It´s strange, kind of unsettling. But it goes perfectly with the story, which is as unsettling, and crude.
I loved the prologues for each volume, where a special tone (one color) is added to the grey tones.
Characters
The two main characters have some kind of a creepy aura, not only in looks but in their behavior. It is not that they are scary, they are not... they are "strange". Their looks and behavior reflect in a way their tortured souls.
A wide range of human adults accompany them in their journey. We don´t get to know all of them in depth... but they all carry some kind of burden, pain or sin.
In short, I highly recommend reading this manga. If you feel confused in the beginning, hang on in there. Everything will make sense as you keep on reading.
The story is really heavy, you will probably cry at some point, or at least feel your chest squeezing... but there is also a feeling of hope and redemption in the manga. Definitely, worth reading.
