Bok Gwi-Joo and his family were born with various supernatural powers. Bok Gwi-Joo can travel back in time, but only to happy times in his life. He can't change the past, so he can only dwell on those happy moments. Bok Gwi-Joo is struck by depression and this causes him to lose his supernatural power. His family is also losing their own strength due to modern problems such as insomnia, bulimia and smartphone addiction. One day, Do Da-Hae becomes involved with Bok Gwi-Joo and his family. She begins to live with them and change occurs.