The main character is a woman. After waking up, she finds herself in a freezer. After trekking with her teammates for a long time, she finds that the world has ended.

Then, she realized that there were seven teammates who shared the same fate as her. The main character was in Team Spring. Other than Team Spring, there were other teams, but they were not in the same location. It turned out that Zheng Fu had already predicted the end of the world, so he had selected a number of people from all over the country, signed an agreement with their guardians, and sent them into the freezer. They would only be released when the surrounding environment adapted to human survival. I remember that the name of the manga seems to be seven... It was a comic from more than ten years ago.
[I should add that this manga is actually quite depressing. The main character is introverted and doesn't talk much. His character is quite weak at the beginning.] Everyone in the protagonist's team had personality problems and had been deliberately selected.
The manga was set up in four teams, spring, summer, autumn, and winter. The selected teams were all teenagers who were not short-sighted, did not have genetic diseases, had good genes, and were excellent in both conduct and learning. Later on, he chose another four teams (or perhaps only the main character team). They were all in good physical condition, but had problems with their character and other qualities. For example, autistic, depressed, rebellious, and so on. What left the deepest impression was that the main character's team encountered another excellent team. This group of people were all chuunibyou and gave up on themselves. They built a few houses and used the supplies left for them by humans before the apocalypse. Then, they smoked drugs and had sex in order to prevent pregnancy…Some of them were even more unlucky. As soon as they climbed out, they found that the people in the freezer next door were dead. There were only three people left from the seven people (it seemed to be this number). In the end, there was only one man left, and the two beauties were dead. In the end, the man picked up a wolf and kept it by his side to rely on.

Answer 1

The name of this comic was What Were You Doing During the Doomsday? Are you free? Can you come and save me?"