Chie harbored intense feelings for her son, enduring each day while suppressing the physical pain. However, one day, their secret was leaked to her son's friend. The friend labeled Chie as a promiscuous mother and pressured her, using threats to demand she submit to him. To protect his mother's secret, the son chose to remain silent. Meanwhile, the friend came to their home. The son could only watch helplessly, unable to intervene as an illicit and disturbing relationship unfolded between his mother and his friend.