Kokou No Hito is a Manga made for climbers, by climbers. Mangas are Japanese comics made for all ages. Kokou No Hito conforms to the Manga style developed in Japan in the late 19th century.
Kokou No Hito is about a group of climbers, real and fantasized, there are over 170 online chapters. To see Kokou No Hito, see here.