Earth 100,050, All energy has been replaced with a renewable energy harvested directly from inside the core of the sun by an 'unbreakable' cable called Tetra. The main character Shin has to make a difficult choice. He has two options. Option A: He leaves behind his little brother and sister and makes his way to the families freezer pod in no time or option B: He takes the family heirloom 'Katana A' and takes his family with him in order to get to the freezers safely but slowly. Which will Shin choose?