The world will be saved in exchange for his sister's life...

Gram, the Black Guardian, continues to fight and protect his sister, his only living relative. He does so in order to offer her life as a sacrifice...

What is the only answer that the taciturn warrior can reach in the face of a gigantic calamity that no human power can possibly resist?! In the vividly depicted dark night, the horrific reality and the karma of human beings emerge. The dawn of a new dark fantasy...