A lonely college girl, Chitose, crossed the Japanese shrine's Torii when she became an adult on her twentieth birthday, but somehow wandered into a different world called Chikuni. She was picked up by a pharmacist and zero of a handsome hermit, and she worked as his disciple. "This Yasumoto!" She was so scolded every day.

However, while making medicines to heal customers, she heard, "This is where you were!" Her family, who was looking for her, had appeared in a dream...