She was originally a happy little woman who planned to get married to her boyfriend the following year, but at this time the news of her boyfriend's death came. The police concluded that he died accidentally from falling from the building, but she witnessed her boyfriend falling from the building. From then on, she lurked in this family as an avenger, carrying out her revenge plan step by step. As the plan unfolds step by step, many small things have changed, and some long-buried secrets have gradually surfaced. Can her revenge plan continue? What is their future? Confusion, pain, sadness... The geese pass by without leaving a trace, and they disappear with the sea water, all of which are ethereal.