Healing romance between a man whose life is tiring because of things he says without meaning them and a woman who's afraid of life because of her closed heart. Dong-soo who has tic orders that make him swear without knowing it, visits Ye-ri's rooftop house twice a week to deliver daily necessities that's his job. Ye-ri is always shut in her room after the death of her younger sibling. While communicating with the world only by publishing Internet novels, she is comforted by Dong-soo. Twice in a week. Dong-soo and Ye-ri start talking about the things they have never told anyone before. She talks about her younger sibling who wanted to see an ocean without water and Dong-soo decides to her grant her that wish...will they make it
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