The world's largest antiquarian bookstore district in Kanda, Tokyo, is home to more than 160 stores, where you can find amazing treasures such as medieval books priced at 10 million yen and unpublished manuscripts of great writers. A company employee buying his favorite boys' manga, a mother searching for an out-of-print picture book for her child, or a job-hunting student picking up a philosophy book in search of inspiration. Together, they slip back in time to the labyrinth of old books. We took a peek into their deep world for three days.