Kujira no Josephina
Japanese title: くじらのホセフィーナ
Alternative titles: Josephine the Whale, Adios, Josefina
Type: TV
Source: Novel
Episodes: 23
Status: Finished Airing
Aired: Apr 2, 1979 to Sep 25, 1979
Broadcast: Unknown
Duration: 25 min per ep
Rating: G - All Ages
Studios: Ashi Productions
Producers: Kokusai Eigasha
Genres: Adventure, Fantasy

Santi is a shy Spanish boy who keeps a tiny whale in a bowl, invisible to everyone but him. The whale, named Josephina, is able to alter her size and fly; she takes Santi on many dreamlike adventures and helps him confront the challenges during his childhood; however, things change as Santi starts taking interest in the outside world and gets to know his distant father.

Based on Adios, Josefina (Goodbye, Josephine) by Jose Maria Sanchez-Silva.

(Source: AniDB)