Galaxy Express 999 (銀河鉄道999(The Galaxy Express 999) )

In the future, one can achieve immortality by obtaining a mechanized body. Orphaned, young Tetsuro hitches a ride on the space train Galaxy Express 999 in the hope of obtaining a cyborg body to avenge his mother's death. Along the way, he meets Matael, who is the spitting image of his dead mother.