South of the Border, West of the Sun by Haruki Murakami

The novel tells the story of a man named Hajime, who grew up as an only child in post-war Japan. He forms a deep bond with a girl named Shimamoto during his childhood, but they lose touch as they grow older. Hajime builds a successful life with a wife and two daughters, but he is haunted by his past. When Shimamoto unexpectedly re-enters his life, he is torn between his commitment to his family and his lingering feelings for his childhood love. The novel explores themes of nostalgia, regret, and the complexities of human relationships. The 12174th greatest book of all time