In 3035, a mysterious force attacked Blue Star. Strange creatures appeared on Earth, pitch-black from head to toe, bizarre in appearance, immensely strong, and utterly terrifying. Not a single person survived in the cities they attacked.
To defend against them, people formed the Blue Star Protection Organization themselves and named it "Calamity." Calamity rallied the world's top talents and finally developed a shield capable of fending off the mysterious creatures. They gathered all the survivors on Blue Star together and activated the shield, securing a brief respite.
Calamity's leaders called the mysterious creatures "Shadows."
Until one person, left with no other choice, made a decision that showed people a turning point they called "hope"…
