Is It Wrong to Let the King of Despair Save the World?

In order to collect his sister's soul, William made a deal with "The World". "Save this collapsed world" "The World" told the boy. Because many worlds collide with each other, they are about to be destroyed. "Human beings are extremely pathetic. Human stupidity... Is too innocent and single-minded." On the rooftop, the young man slowly turned around and looked at the visitor. The Japanese police pointed a gun at the young man in front of him who claimed to be the "King of Despair", with a serious look on his face, "William...? No, who are you?" The blond boy stood on the edge of the rooftop, his long dark blue trench coat swaying in the wind, like a stray bird, revealing his loneliness. The light at night was dim, but those red eyes were astonishingly bright. He smiled wantonly, which was completely different from the somewhat reserved William Macbeth in Toru Amuro's memory. The blond boy with red eyes reached out and brushed his face from top to bottom, his gentle bangs were lifted uninhibitedly, and he smiled wildly. "By the way... How about you guess my name." That was a boy who was beyond life and death, embraced by despair. Purpose: love and justice