Issue · Shōnen Gahōsha Hey! Riki (2004) #6: Vol. 6 Released Apr 10, 2006 ArtistHiroshi Takahashi WriterKoichi Nagata Next in Hey! Riki (2004) #7 · Vol. 7 Aug 7, 2006 #8 · Vol. 8 Dec 11, 2006 #9 · Vol. 9 May 9, 2007 #10 · Vol. 10 Sep 10, 2007
