Ane (meaning "older sister" in Japanese) was excited to start her new project, and she knew just the person to help her - Yanmama, a skilled installer with years of experience. Their mission was to successfully install "Junyuuchuu 1," a cutting-edge system that would revolutionize the way they worked.
Additional information regarding the specific differences between the manga and this animated adaptation is available if interested. Aika (Ane wa Yanmama Junyuu-chuu) | AnimeVice Wiki ane wa yanmama junyuuchuu 1 install