The only real interest he had was train stations. He wasn’t sure why, but for as long as he could remember, he had loved to observe train stations—they had always appealed to him. Huge bullet-train stations; tiny, one-track stations out in the countryside; rudimentary freight-collection stations—it didn’t matter what kind, because as long as it was a railway station, he loved it. Everything about stations moved him deeply.

Like most little boys he enjoyed assembling model trains, but what really fascinated him weren’t the elaborate locomotives or cars, the intricately intersecting rail tracks, or the cleverly designed dioramas. No, it was the models of ordinary stations set down among the other parts, like an afterthought. He loved to watch as the trains passed by the station, or slowed down as they pulled up to the platform. He could picture the passengers coming and going, the announcements on the speaker system, the ringing of the signal as a train was about to depart, the station employees briskly going about their duties. What was real and what was imaginary mingled in his mind, and he’d tremble sometimes with the excitement of it all. But he could never adequately explain to people why he was so attracted to the stations. Even if he could, he knew they would think he was one weird kid. And sometimes Tsukuru himself wondered if something wasn’t exactly right with him.

Though he lacked a striking personality, or any qualities that made him stand out, and despite always aiming for what was average, the middle of the road, there was (or seemed to be) something about him that wasn’t exactly normal, something that set him apart. And this contradiction continued to perplex and confuse him, from his boyhood all the way to the present, when he was thirty-six years old. Sometimes the confusion was momentary and insubstantial, at other times deep and profound.

Sometimes Tsukuru couldn’t understand why he was included in their group of five. Did the others really need him? Wouldn’t they be able to relax and have a better time if he weren’t there? Maybe they just hadn’t realized it yet, and it was only a matter of time before they did? The more he pondered this dilemma, the less he understood. Trying to sort out his value to the group was like trying to weigh something that had no unit value. The needle on the scale wouldn’t settle on a number.

But none of these concerns seemed to bother the other four. Tsukuru could see that they genuinely loved it when all five of them got together as a group. Like an equilateral pentagon, where all sides are the same length, their group’s formation had to be composed of five people exactly—any more or any less wouldn’t do. They believed that this was true.