Satoshi is married to a hostess she met during her time working in the nightlife industry, resulting in a surprise pregnancy and subsequent marriage. Overwhelmed by the demands of raising children, especially after the birth of their second child, she finds herself with almost no personal time. Though she has dedicated herself entirely to her family, she gradually begins to feel emotionally drained. She starts craving occasional breaks from her exhausting routine. However, her husband shows little involvement in childcare, immersing himself in stock trading after returning from work, while spending weekends away playing golf. Amid this lonely and unfulfilling lifestyle, Satoshi begins entertaining thoughts of infidelity, eventually turning to an affair website where she indulges in simulated romantic relationships with strangers. Her deep desire to escape the pressures of daily life slowly awakens her longing for emotional and physical fulfillment outside her marriage.