スタジオコメット
Development of Jewelpet Twinkle began in late 2009 during the first series's airing. Seeing the moderate success of the first series, Sanrio decided to ask Studio Comet to make a second series with a fresh new storyline. During the development, the company decided to change the schedule of the anime from Sunday to Saturday, but retained the airtime and also switched stations from TV Osaka to TV Tokyo.