A 30-year-old man working at the local water department spends most of his free time immersed in video games, with no girlfriend and no prospects of marriage. Worried about his solitary lifestyle, his mother constantly checks in on him. One day, while masturbating in the bath, she suddenly walks in and says, "Shall Mom help you out?" That single sentence becomes the turning point of his life. An unexpected twist in an ordinary routine gives rise to a forbidden relationship. A mature, alluring story unfolds here.