Sangja Sog-ui Ai
English name: Child in a Box
Genres: Slice of Life
Type: Movie, Episodes: 1
Aired: 2002
Source: Original
Rating: G - All Ages
Synopsis:
Left inside a box all day, a child's only friend is his little toy plane. All alone, the child lets his imagination fly, creating interesting new situations that allow him to meet even more friends. 

(Source: yesasia.com)