40 years old Tachibana Yuzuki has just taken on a job as a mountain climbing guide. While on her first solo guide job to climb Mount Myoko and Mount Hiuchi, she meets the female members in her group: Yumi and Ritsuko who work in a departmental store and Mitsuko who works in a welfare facility. With various reasons and issues, these first-time climbers try to scale the mountains while led around by the nose by Kijima who is Yuzuki's senior but younger than her. Based on the novel "Yamaonna Nikki" by Minato Kanae and features the booming trend of women climbing mountains as a hobby and the issues and feelings they have.