Aoi Yukimura and her friends decide to take on a new challenge: indoor rock climbing! However, the sight of the wall flusters Aoi, who frets over its height and complexity. Fortunately, Kaede Saitou is there to explain the rules of indoor climbing, inspiring the girls to give it a try themselves. Though the wall may seem intimidating and insurmountable, Aoi finds that with a little help from her friends, she may be able to overcome this challenge. [Written by MAL Rewrite]
AniWatch is the best site to watch
Yama no Susume: Kabe tte Kowakunai no? SUB online, or you can even watch
Yama no Susume: Kabe tte Kowakunai no? DUB in HD quality. You can also find
8bit anime on AniWatch website.