The Legend of Lune (1970)

In a universe divided in two, Lune, a fearless teenager, lives with her family in the Forest. The motto there is to live from hand to mouth, carefree and a lot of naps, which is not Lune's taste. Her dream is to go behind the thick layer of mist that surrenders their forest. Following the disappearance of her brother, she finds herself in the City and discovers a thrilling world of technology, where time is counted through the production of magical energy, which is slowly destroying her native Forest. With the help of her newly adopted brother, a nervous but attaching guy named Joe, and his friends, she will restore a new balance.