38-do Senjou no Kaibutsu

"A Man from Mars" is a science fiction short story depicting a conflict between an alien from Mars and earthlings. A boy called Chiru-chiru and his younger sister Michiru are poor children. One day they help a mysterious stranger lying by the roadside. The man, named Harrire, gives them golden seeds. It turns out that Harrire is a Martian who has come down to Earth to get water. Harrie negotiates with humans for the water he needs, but in vain. Meanwhile, a villain named Dr. Marpigie carries away Harrire's spaceship. Chiru-chiru, Michiru and Detective Higeoyaji help Harrire and fight against the villains in the snow-covered mountains. (Source: tezukaosamu.net)