Ima, soko ni iru boku

A Japanese boy named Shu tries to save a strange girl, Lala Ru, from kidnappers and is transported to an alternate Earth on the brink of being swallowed by the sun. There he meets an American girl from his time, Sara, who was mistakenly captured because of her resemblance to Lala Ru. Shu becomes and unwilling member of the crazy and cowardly King Hamdo's army (...) (imdb)