is a two-episode adult anime series that originally premiered in 2020. The series is based on a manga of the same name and follows the story of Takuya, who discovers his older sister, Aika, has become a "Yanmama" (a Japanese subculture term for a young, rebellious mother) and is currently nursing her child. Episode 2: "Swimsuit, Yukata, and Mixed-Gender Hot Spring"
The animation style by Studio T-Rex is streamlined for the medium, whereas the manga often contains more detailed and graphic illustrations that are occasionally toned down for the animated version. ane wa yanmama junyuuchuu 02 exclusive
The series was produced by the studio T-Rex . is a two-episode adult anime series that originally