Minoru travels from Tokyo to Okinoerabu Island, where he remembers his mother, who died thirty years earlier, and seeks to honor her spirit. Through the island's natural landscape and memories of the past, this autobiographical novel portrays the love between mother and child, loss, and attachment to one's homeland.

Amid the natural landscape of Okinoerabu Island, Minoru follows the memories of his late mother.

This work is recorded as a shortlisted candidate for the 3rd Dazai Osamu Prize, not as the winning work.