One day, just before Kitamura Shota and Ami's wedding, Akutsu, the head of the human resources department, calls Shota, who is currently a section chief, and instructs him to improve the work skills of new employee Saeki Yuna. While Yuna continues to improve, Shota is somehow demoted. With his income reduced, he decides to rent out the second floor of his house.
| Actor | Role |
|---|---|
 Ayumi KimitoAmi Kitamura | Ami Kitamura |
 Alice OtsuYûna Saeki | Yûna Saeki |
 Shôtarô IzumiShôta Kitamura | Shôta Kitamura |
 Taishi TakemotoSadao Akutsu | Sadao Akutsu |
 Seiji NakamitsuTetsuya Togashi | Tetsuya Togashi |
 Rin OgawaNot listed | Not listed |