Wikipedia There is more information available on this subject at Studio 4°C on the English Wikipedia.

Studio 4 °C is a Japanese animation studio founded by Koji Morimoto, Eiko Tanaka, and Yoshiharu Sato in 1986.

Studio 4 °C produced two of the seven episodes of the 343 Industries Halo Legends Anime, the two being The Babysitter and Origins.