B.B. Fish
Genres: Drama, Romance
Type: OVA, Episodes: 1
Aired: Feb 25, 1994
Studio: Production I.G
Source: Manga
Rating: R+ - Mild Nudity
Synopsis:
At the time of the ceremony of entry to the college, a young boy named Ushino Hayama finds Sara a girl whom he met ten years ago. From this day, a change has taken place in him, and notices that can now control some water. After having succeeded the swimming championships, he discovers deep sea diving.

(Source: ANN)