Pasajero is the Spanish word for Passenger, but it also means fleeting or ephemeral. This double sense embodied my entire journey through Tokyo: a Spaniard-traveler, pasajero, riding trains, but also the beholder of transient daily life with haphazard encounters. Tokyo has the world’s largest rail system, 2,300 km of railway, 136 lines and more than 1,000 stations flooded with a daily flow of about 20 million passengers. My journey to Japan becomes a photographic exploration of this complex transit space, a fascinating reality concealed in silence, behind the surface rumble.