The TV anime series Nisemonogatari is created by studio Shaft, based on NisiOisin's light novels with a story set in the early 21st century, as a sequel to Bakemonogatari (likewise adapted into anime, in 2009), and centering around the "Fire Sisters" Tsukihi and Karen Araragi. The anime is airing in Japan and simulcasting on Crunchyroll from January 7, 2012.