Natsu no Niwa plot
"Things that pass, and things that can't be lost… One summer adventure story of three boys."
Three boys are obsessed with death. Kiyama once heard that every human being takes six to eight million breaths in their life span and therefore counts their inhalations and exhalations at night. His bespectacled friend Kawabe is completely haunted by the thought of his death after his own father passed away. When he overhears his mother talking about an elderly man who could drop dead any moment, he persuades Kiyama and other friend Yamashita to go there in hopes they can see it.