Monthly Manga Shonen Separate Volume Phoenix Volume 7: Warring States Arc, Part 1 Published December 30, 1981. I'm not sure what edition this is, but since there were 8 volumes at the time, it's not the first edition. It's readable without any problems, but it's old, so it has aged accordingly. Please refrain from purchasing if you are concerned. Phoenix Osamu Tezuka Monthly Manga Shonen Separate Volume Asahi Sonorama