1+2=Paradise.

1+2=パラダイス

1+2＝Paradise (1+2=パラダイス, Ichi tasu Ni wa Paradaisu) is a Japanese manga series by Sumiko Kamimura. The story has been adapted into a two-episode original video animation (OVAs) released by Toei Video, a subsidiary of the Toei Company. Because of the sexual content the series was one of the manga placed on "Harmful manga" lists by local and national governmental agencies.