Naoki Urasawa's 20Th Century Boys 22 (Paperback)

From the Publisher: Reads R to L (Japanese Style), for audiences rated teen plus. Humanity, having faced extinction at the end of the 20th century, would not have entered the new millennium if it weren't for them. In 1969, during their youth, they created a symbol. In 1997, as the coming disaster slowly starts to unfold, that symbol returns. This is the story of a group of boys who try to save the world.