In central Tokyo, a young man, Sosuke, aspires to be a manga artist. His current work is about a battle between a hunter and a Japanese wolf. He can’t draw the extinct wolf well and struggles to develop the story. One winter’s day, Sosuke finds an animal’s skull while digging foundations at a construction site and takes it home. Is it a Japanese wolf’s skull?
Sougo's high school is suddenly isolated in a wilderness filled with Inves! How did it get here? Can they survive? And why are there MORE Sougos appearing?? The answer may lie with Decade...