As marital strife, mounting abuse, and continual moving take their toll, the boy tries to escape, either by running away on trains, or by retreating into a sci-fi fantasy he has constructed for his little brother and himself. Finally, in snowy Hokkaidō, the law finally catches up when the little brother unwittingly causes a fatal car accident.
Marital discord, escalating abuse, and constant relocation take their toll; the boy attempts to escape by running away on trains or retreating into a sci-fi fantasy he has created for his younger sibling and himself. Ultimately, in snowy Hokkaido, law enforcement catches up when the younger brother unintentionally causes a fatal car accident.