Before a manga series can reach book format, it is first released in a phone book sized manga magazine. These large magazines have dozen of manga series, by different artists, released twice a month, weekly, or even quarterly. Using the drop menu, you can see which magazine issues were released with which series. This section is not complete.
Genbu kaiden has been released in MANY different magazines. Chapters 01-06 was released in Sho-comi Zoukan, Chapters 07 - 31 was released in Yuu Watase's Perfect World Magazine, Chapters 32 - 38 was released in Rinka Magazine (a spin off of Flowers Magazine). And lastly Chapters 39 - 40 was released in Flowers Zoukan. Look Below for those cover images!