Which Japanese drama or movie is this?

Love shuffle, also known as Ai Xuan/love shuffle.

This picture is the final ending.

abstract

Usami Qi, 29, is the director of a first-class IT company and lives on the top floor of a high-class apartment, but in fact, he only graduated from a second-class university. The reason why he entered the first-class company and became a director depends entirely on his fiancee Kagawa Budi. Just three months before the wedding, Yayi suddenly broke up with Qi, and Qi was shocked. In this way, not only his love, but also his career will face a serious crisis. On a thunderstorm night, Kay returned to her apartment in frustration. There are three men, 1 woman and four people in an elevator with him. Just as the elevator was rising, it suddenly stopped because of lightning, and everyone was frightened. Just when he was anxious, an older man introduced himself. He is 32-year-old psychologist Masao Kikuda. Another young man is a 26-year-old photographer who specializes in shooting women; The only woman is a 25-year-old translator who is proficient in three languages. Kay unconsciously nagged them about his unfortunate love and became the laughingstock of everyone. At this time, Zhengren made a bold suggestion, that is, exchange partners! For a week, everyone rotates their partners. His proposal stunned everyone, but out of their own problems and helplessness, everyone accepted such an "incredible" proposal. So, Kay's fiancee Yayi, Ai Cong's boyfriend Ishiguro, his girlfriend-a married woman-Shangtiao and the just patient are involved in this game!