Nana, who has been estranged from her sister Noa for about four years since she moved out to live alone, visits Noa's house to bring her back. Their father has been diagnosed with three months left to live and wishes to spend his final days with his family. After returning home and spending the last moments together, Noa loses her beloved father and feels tenderly towards the grieving Nana. Nana also leans on her sister, and they quickly become drawn to each other.
