Hitori Camp Shitara Isekai ni Teni Shita Hanashi

Kaede, an office worker, was on a solo camping trip in the mountains to heal the pain of a broken heart when she suddenly found herself transported to another world. At first, she was scared of the monsters she had never seen before, but gradually she became stronger. Furthermore, Fenrir and the fairies joined her. Kaede's life as a camper in another world, with her steely mentality, begins now!

(Source: Futabasha, translated)