User blog comment:15sok/Talk About What You Want/@comment-15029256-20140406140232/@comment-3544775-20140406142954

Actually it's not that impressive. The series is definitely doing well and it's a success, but this number is not that impressive. Also considering the volumes don't sell that much to near cover those 3 millions (I suppose the current sales are 2-2.1 millions at best 2.3). For example: One Punch Man 5 Volumes, 3.2 millions. 3 volumes less than Nanatsu, but more in circulation. Individually the volumes also sell better and it's also released online and it's not part of big circulation magazine like Nanantsu. Another example: Terra Formars, 8 volumes, 6.24 millions in circulation. Seinen series usually has less audience, that's why I gave those 2 series as example, as they are also action oriented like Nanatsu. There are other series that are doing even better. Like I said, Nanatsu is definitely doing good, but it's not that impressive as Kodansha hoped. It's sales are getting bigger with each volume, so probably because of that Kodansha is printing more for the future, but unable to sell them now, doesn't make it impressive.