Survival on the Solitary Island
Kotou no Boukensha, translated as "Survival on the Solitary Island" is a survival-adventure manga by Yoshihiro Takahashi, the creator famous for the "Ginga: Nagareboshi Gin" series.
While Takahashi is best known for his stories about heroic dogs, this work focuses on the human struggle for survival and the bond between two brothers.