Shiawase no Shippo (Tail of Happiness) (2002)

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Mio is just your average young woman. She lost her mother two years ago, and has been living alone ever since. One day, her father shows up out of the blue. She hasn't seen him since her parents were divorced, twenty years ago. Now, he wants to mend fences; to rebuild their father-daughter relationship. Mio hesitates, but begins to feel a need for "family."