Minori is a full-time housewife who has given birth to her first child and is living a smooth postpartum life. Although she is content with her ordinary but comfortable life, she actually has one big complaint. Her husband became cold towards her as soon as their child was born. She felt dissatisfied with her husband who always put the child first and only thought about the child in everything he did... Then, one afternoon, the doorbell rang, which was unusual for her. When she opened the door, there stood a refreshing and good-looking salesman. This was the first time Minori and Aikawa met.