Mori no Tonto-tachi
English name: A Christmas Adventure
Genres: Fantasy
Type: TV, Episodes: 23
Aired: Oct 5, 1984 to Mar 29, 1985
Studio: Nippon Animation, Shaft
Source: Unknown
Rating: G - All Ages
Synopsis:
Deep in the forests of Finland live the little people, or Tontus, the elves who work all year round to keep Joulupukki (Santa Claus) supplied with toys for Christmas Eve.

(Source: ANN)