 Then, Kaji appeared in the TV drama, "Regatta", which premiered on TV Asahi, running from July 14, 2006 to September 8, 2006.The show revolved around a university rowing club, in which Kaji had the role of playing the freshman, Toshiyuki Hoshino, on the team.Nearly after a year away from musicals, Kaji starred as Onigiri, member of the Kogarasumaru Air Trecks team, in the first Air Gear musical called, ", which debuted on January 7, 2007 and run til January 21, 2007.