After the loss of her mother and her own battle with breast cancer, Joanna Teale returns to her graduate research on nesting birds in rural Illinois, determined to prove that her recent hardships have not broken her. She throws herself into her work from dusk to dawn, until her solitary routine is disrupted by the appearance of a mysterious child who shows up at her cabin barefoot and covered in bruises. The girl calls herself Ursa, and she claims to have been sent from the stars to witness five miracles.

Inspired as a boy by the multiple meanings to be found for a single word in the dictionary, Kohei Araki is devoted to the notion that a dictionary is a boat to carry us across the sea of words. But after thirty-seven years creating them at Gembu Books, it's time for him to retire and find his replacement. He discovers a kindred spirit in Mitsuya Majime - a young, disheveled square peg with a penchant for collecting antiquarian books and a background in linguistics - whom he swipes from his company's sales department.

He is a brilliant math professor with a peculiar problem - ever since a traumatic head injury, he has lived with only 80 minutes of short-term memory. She is an astute young housekeeper - with a 10-year-old son-who is hired to care for the professor. And every morning, as the professor and the housekeeper are introduced to each other anew, a strange and beautiful relationship blossoms between them.

Yuki Hirano is just out of high school when his parents enroll him, against his will, in a forestry training program in the remote mountain village of Kamusari. No phone, no internet, no shopping. Just a small, inviting community where the most common expression is “take it easy.” At first, Yuki is exhausted, fumbles with the tools, asks silly questions, and feels like an outcast. Kamusari is the last place a city boy from Yokohama wants to spend a year of his life. But as resistant as he might be, the scent of the cedars and the staggering beauty of the region have a pull.

Yayoi, a nineteen-year-old woman from a seemingly loving middle-class family, has lately been haunted by the feeling that she has forgotten something important from her childhood. Her premonition grows stronger day by day and, as if led by it, she decides to move in with her mysterious aunt, Yukino.