Mizukawa posted on a dating site hoping to fulfill her desire for an affair. After five years of marriage, she began to feel dissatisfied and wanted excitement in her life. She would go out drinking with her female friends and travel to change her mood, but in search of more excitement she accessed an affair site. However, the men she met did not satisfy her, and instead ended up causing her stress. However, Kokoro began to dance when she met an adult video actor.