First published in 1985, 『ぼくらの七日間戦争』 is the first novel of the series ぼくら. I am not completely sure, but I think that the series follows the same characters over the years, as they grow up. In 『ぼくらの七日間戦争』, the protagonist Eiji and his classmates are in first year of middle school. We apparently follow them through..