Aki moved to Tokyo when she entered university, married a senior at university, and gave birth to Masaki. However, the young couple's life did not last long, and Masaki was divorced when he was one year old. Aki quit college, worked desperately and raised Masaki with one female hand. Eventually Masaki became an adult and entered university. Aki, whose child-rearing had settled down, was driven by the desire of Nozomi and decided to invite Masaki to return to her hometown.