The Climber manga volume 4 features story and art by Shin'ichi Sakamoto.

Mori and the 14 Mountain assault team are more than a week into their complete traverse of the Japanese Alps, but bad weather and worse personalities are making the training seem harder than ascending K2 itself. After Mori is singled out for praise by the expedition leader, he finds himself pushed to the edges of the group as the team is beset by a series of increasingly terrible misfortunes. As conditions worsen, can the team pull together, or will it be each man for himself against the cold mercy of the mountains?