In a near-future scenario, a group of young people are cryogenically frozen as part of a project called "7 Seeds" designed to ensure humanity's survival after a catastrophic event.
Upon awakening, these individuals find themselves in a drastically changed and hostile world, years after the disaster.
The story follows the struggles of Natsu and other members of the "7 Seeds" project as they navigate this unfamiliar landscape, facing perilous conditions and challenges.
Each group of survivors must learn to cooperate and utilize their unique skills to overcome adversity and rebuild their lives in this post-apocalyptic setting, while also uncovering the secrets of the project and the world they now inhabit.
Survival, adaptation, and the complexities of human relationships are central themes as they strive to understand their purpose and the legacy they carry.