A comedy focusing on Kondo Asami, a 33-year-old single woman who lives with her parents and works at the local city hall, and suddenly finds herself starting her life over from scratch.

Aga, a band singer, returns to Hengchun with frustration. Tomoko is a Japanese model assigned to organize a local warm-up band for the Japanese super star beach concert. Together with other five ordinary Hengchun residents who were not expected to be great or anything, they formed an impossible band.

In 2012, Atsuya and his 2 childhood friends do something bad and run into an old general store. They decide to stay there until the morning. Late into the night, Atsuya sees a letter in the mailbox. The letter is addressed to the Namiya General Store and the letter was written by someone to consult about worries. Incredibly, the letter was written 32 years ago. The mailbox is somehow connected to the year 1980. Atsuya and his friends decide to write a reply and place their letter in the mailbox.