This manga is mainly set after the end of the world. There has been a great disaster which has wiped the majority of people out. Luckily, the government was able to predict this outcome. So they decided to use cryogenics to put groups of people into hibernation, and set them to thaw out when the planet is habitable again. The story focuses on the five groups named after the seasons (two for Summer, A and B) and what happens when they wake up. The story focuses on the characters' reactions to their new world, their relationships with each other, and above all, their struggle to survive.

Story: 9
The story is very intense, with lots of focus on action/adventure, and psychological questions. It's very absorbing, and makes crave the next chapter right away. The main idea is that these people are trying to stay alive, so the story is mostly character driven. The narrative also switches back and forth between the events surrounding two of the characters, Hana and Arashi. Though romance is not the main element of the story there is one major character with a heart aching story, and other characters who are growing closer. There is also mystery, as the character try to figure out what has happened to the world they knew, and why they specifically were chosen to be kept alive.

Art: 9
The art is great, but probably not for everyone. The author's style of drawing is light, with many soft and delicate lines. Many characters have huge sparkly eyes, as to be expected from shoujo. Still, all the characters are individualized with their own unique looks. The scenery can be beautiful, or eerie depending on where the characters travel.

Character: 9
I originally had an 8 for characters, but as I read further, I definitely got a firmer sense of who everybody was, so the rating went up. The characters are all very engaging, though not necessary all likable. Each character has strengths, weakness, points of sympathy, and annoying aspects to them. Very full characters is something that makes the story even more likable in my open. There is also a far amount of character development, with certain character growing stronger, and others beginning to doubt themselves. I look forward to learning more about each and every one of them.

Enjoyment: 9
The story has a sense of cleverness, but it's also a page turner. The fact that a story can make you feel thoughtful, while also being entertaining makes it more enjoyable in my opinion.

Overall: 9
Honestly, I would probably give this story a ten...if it were completed already. Later something might happen in the story that will drag my opinion of it down, but as it stands I really love it.