20th Century Boys Vol. 7 (manga)
Out in the middle of Tokyo Bay, a man called Shogun is trying to break
out of Umihotaru Prison, a maximum-security island fortress, so he can
save the world. Accompanied by a frightened young manga artist, these
two men are prepared to risk everything as their daring escape plan
grows deadlier by the minute. However, the prison authorities will do
whatever it takes to return Shogun and his reluctant companion to
Shogun's ultimate goal: Tokyo, where a girl he calls the "final hope" lives, but a murder in Kabuki-cho has triggered a chain reaction of terror. Can Shogun reveal the truth about the false peace created by the Friends? And what are the facts behind the disaster that took place in the final moments of the 20th century?!