Yumi, a single mother raising her son Hirokazu, began to feel confused about her feelings towards him as he grew up. Just when she was struggling with these emotions, her husband returned after being gone for 12 years, bringing evidence that could lead to their reconciliation. However, fate intervenes when Hirokazu discovers this truth, leaving him devastated at the thought of losing his family ties. As he breaks down in tears, Yumi embraces him tenderly...

息子・浩介を女手一つで育て上げた由美。そして彼の成長と共に、彼女は母としてではなく異性としての感情を抱き始めた事に、戸惑いを覚えていた。そんな時、12年前に出て行った夫が戻ってきた。浩介が病院で別の子と取り違えられた証拠を携え、復縁を迫るが偶然にも浩介は、その事実を知ってしまう。親子の繋がりが無くなることに絶望する浩介。だが彼を優しく抱きしめる由美は…。