Fukuura Koharu works at a child welfare office and plunges into despair overnight. Then she meets Daigo, a private-practice doctor raising his 8-year-old daughter on his own. She resolves to build a happy household, but things don't go as expected.
For 13 years, Yuria Aikawa's whereabouts have been unknown. All of a sudden, she reemerges and returns to her family. What awaits Yuria is a world that have completely changed.
