(from MangaUpdates): These are the adventures of a young man named Taro, who is an extra on the movie Meteor Prince, and his daily life. There is once again a second half, which is the tale of a group of high school boys during world war II who defend their homes using kendo skills while their fathers are at war, one of whom eventually find himself in the military as well.

Volume 316 of the Osamu Tezuka Complete Works