Yusuke and Rena Murakami, doctors at the same hospital who married at work, continue to display their lovey-dovey relationship, attracting the envy of those around them. Haruko, an assistant who had a sexual relationship with Yusuke once before, is filled with jealousy. One day, Rena is tasked with diagnosing Yusuke's cousin, Miyata...

Machiko Matsuoka is a high school music teacher who lives with Keiko, her older sister with a bad leg. They were close once, but Keiko became disabled in an incident. Believing that Machiko was the cause, Keiko has treated her like a slave ever since. Machiko has done everything she says, but her frustration has accumulated. One day, Machiko begins a secret relationship with her student.