PRISM ARK ~PRISM HEART II~ (プリズム・アーク ～プリズム・ハート エピソード2～, Purizumu Āku ~Purizumu Hāto Episōdo2~?) is a Japanese erotic video game and the sequel of Prism Heart developed by Pajamas Soft. Its first release was on August 25, 2006. This work contains adult-only content of a sexual nature.

An anime entitled PRISM ARK began airing on Chiba TV, on October 8, 2007.

Source: Wikipedia