Isule, a 15-year-old high school student, is both a marijuana user and a courier for his childhood friend who introduced him to cannabis. One day, he unexpectedly meets an elderly scientist who deeply regrets neglecting his family to create the world's best marijuana strain. When the scientist finally succeeds in developing the perfect strain, he finds himself alone and old. At this point, he meets Isule, a young boy with a strong passion for smoking weed. The scientist passes on his legacy to Isule with the condition that he spreads the black void strain worldwide. Will Isule become a leader with this legendary strain, or will he face failure and lose everything?
