Kim Jongwoon is a hard working single dad, who would move mountains for his almost four years old son, Ryeowook. The little one's mother left them as she realized that a baby isn't just cute, but also causes work, when Wookie was barely one year old. After a depressed phase of self-doubt, Jongwoon has come to terms with it, and the only thing he needs to live now, is the love of his little sunshine. But once in a while it's good to know that he has support behind h