Issue · Akita Shoten Kanojo no Kagi wo Akeru Hōhō (2008) #3: Vol. 3 Released Feb 5, 2012 WriterYumi Nakata ArtistYumi Nakata Next in Kanojo no Kagi wo Akeru Hōhō (2008) #4 · Vol. 4 Oct 5, 2012 #5 · Vol. 5 May 13, 2013 #6 · Vol. 6 Feb 5, 2014 #7 · Vol. 7 Aug 5, 2014
