On July 27th, university student Aoi Hinata (Miwa) has an accident. When she wakes up, Aoi Hinata finds herself in a classroom from one week before the accident. At that time, her childhood friend Riku Hasegawa (Kentaro Sakaguchi) tells her "I will tell you a secret. I can turn back time." Aoi Hinata and Riku Hasegawa like each other, but never expressed their feelings. They share their feelings for each other and go back to one year earlier. They spend their time happily as girlfriend and boyfriend, but there is a big secret behind the time slip. In addition, July 27 is approaching.

A recently widowed writer whose wife died in a bus crash comes to terms with his grief—or lack of it—in caring for the children of a working man who also lost his wife in the same accident.

Mie’s (Haru) father died during the aftermath of the 2011 Tōhoku earthquake and tsunami. One day, she finds a bundle of unsent New Year’s cards, which languished there for 28 years. To find out why the cards were never sent, Mie tracks down Haruhiko Sakacho (Kiichi Nakai). Haruhiko played on the same high school baseball team with her father. Mie eventually gathers together her father's former teammates to play in the Masters Koshien (a senior league baseball tournament). Mie also uncovers a truth about her father and the baseball team.

Sakai is a city near Osaka by the bay famous for its swords in the old days and kitchen knives today. Norio is an antique dealer in the city. Sasuke is a potter in the city. Seventeenth century tea master Sen No Rikyu appears before them one day.