In February 2011, Kojima detoured from a business trip to visit his…

As his eldest son grew, Kojima stopped visiting Kamakura and likewise became too lazy to go back to Kobe; Umimachi Diary reminded him of what he had lost and what he must not forget. At the end of that summer he went to Hayama with his younger son, and from the train saw the sea where he had played with his father and where he had gone with his first son, and he decided to resume that diary of outings when the younger son is old enough.

For Kojima, the image of a train is the maroon Hankyu carriage running through the mountain valleys of Kansai. From his childhood moves through cram school, regular school, leisure, dates, movies, shopping, trips, New Year’s shrine visits, trips to the airport, work, and returning home, the Hankyu network accompanied roughly half his life, and its maroon color became associated with his youth.

Kojima bought Hankyu Densha solely for its cover and title. He began reading it propelled by railway nostalgia, became caught by the book’s gentle, almost maternal wistfulness, and joked that he finished it at express-train speed.

Kojima lived near the sea in Tsujido until he was three, and after returning to the nearby Tokyo area in 1996 he took his eldest son many times to the coastal towns of his memories. On one route in Enoshima they saw fish, ate rice with seafood and manju buns, rode the ESCAR toll escalator—which Kojima called a rip-off—returned by ferry and ended the day in a café: Kojima drank coffee, the boy had juice, and Southern All-Stars songs played in the background.

Kojima described his father as a chemist involved in the development of new medicines who, within the corporate structure, was nevertheless a salaryman enduring crowded trains, conflicts with coworkers and persistent fatigue while continuing to work, and who finally managed to buy a house in a Kansai suburb. In that newly created town with no shared past, families and children measured one another by academic background and job title as if playing a card game; Kojima rebelled by choosing the then-young video game industry, where he believed titles weren’t necessary and only a person’s ability mattered.