Newlyweds Nana and Shota move into an apartment. Two situations, different from the drama series, take place: "What if Shota attends the resident's meeting and not Nana?" and "What if exchange murder game doesn't begin?"

A high school girl, Sayaka Kudō was the bottom of the class. After a year, she improved her deviation value from 30 to 70, then passed Keio University that is considered one of the most difficult to enter in Japan.

Kenshi Tokunaga runs an IT company in Tokyo. Due to a big company, he has a hard time in hiring engineers. He decides to find engineers for his company in his hometown of Minami, Tokushima Prefecture, Japan.

The story of Yoji and Haruka two former high-school classmates who are now are getting married and want to spend the rest of their life together. With the changing seasons their life also changes.