A story about a couple, Hinata and Ichiro, who have been dating since their student days. They got married last year and still maintained their closeness until one summer when Ichiro's infidelity was discovered. Despite trying hard to conceive a child together, they faced disappointment after disappointment. Just when things couldn't get any worse, Ichiro's father Tohru visited them on a business trip to Tokyo. He had always treated Hinata well back when he lived nearby, so she found herself drawn to him upon their reunion. As if under a spell, she began subtly seducing Tohru without realizing it. When she finally came to her senses, she decided to pay him a visit at his home... *Note that the recording contents may vary depending on the distribution method.