Juuni Senshi Bakuretsu Eto Ranger is a 1995 Japanese anime television series. The Eto Rangers are based on the twelve animals of the Chinese zodiac.

Shaft, also known as Shaft Animation Studio, is a Japanese animation studio headquartered in Suginami, Tokyo, and founded in 1975. Since 2004, the studio's productions have been broadly influenced by director Akiyuki Shinbo, whose visual style and avant-garde cinematography are featured in works including Hidamari Sketch (2007), Sayonara, Zetsubou-Sensei (2007), the Monogatari series (2009–present), Puella Magi Madoka Magica (2011), Nisekoi (2014), and March Comes In Like a Lion (2016).