The day started as any other day for the three sisters, Tsumugi, Momo, and Rin, and their father. But they soon learn that everyone has disappeared and they appear to be the only humans left on earth. How will they survive?

The title is a short for "Yuru Survival" where "Yuru" means "relaxed, simple, gentle, laid-back", like that other title "Yuru Camping." So don't expect anything heavy. It's a fluffy story with some "survival" tips and information on animals they encounter and food they make.