The Nana Komatsu Proto Star series, volume 1 to volume 9, were published as eBooks between February and November 2013. They were original and exclusive photoshoots from previous years. Young Nana Komatsu had been working as a teen model since she was 12 for magazines such as Jille, Spoon, Haco or Nico Petit. She also appeared in Panasonic commercials, more ‘prestigious’ mags such as Nylon Japan and was soon to embrace an acting career with The World of Kanako.
Those eBooks are still available from many online stores. Amazon Japan has the complete series on the Kindle format. However you must be a resident in Japan or at least use a credit card issued in Japan to purchase them. Below is a selection from those volumes.