The title you mentioned refers to the adult anime (hentai) series Hentai: Color of the Sky, Color of the Water (also known as Aisora or Aisora: Sky and Sea ), based on the manga by U-Jin. Specifically, you are asking about the second episode.
). It is a two-episode adult OVA (Original Video Animation) produced by the studio Himajin, with the second episode released in June 2008. Feature Overview: Sora no Iro, Mizu no Iro - Episode 02
If you want adrenaline, stunning fight choreography, and power systems that make you think, look here.
The quintessential "gateway drug." Genius high school student Light Yagami finds a notebook that kills anyone whose name is written in it. He decides to become the god of a new world by killing criminals, attracting the attention of the world’s greatest detective, "L."