Yui has something hidden from her husband. It is that she had a man-woman relationship with her son Toru. She knew it wasn't right, but she didn't listen to her instincts and she fell into the depths. At first, when her husband was never at home on a business trip, her secret affairs, which she secretly did, escalated more and more, and now she starts asking for her husband in two seconds when her husband is gone.
