Nanairo no hana

When a woman who has been the mistress of a politician since her teen years finds herself middle-aged and owning a nice house near the ocean, she cannot imagine how her future would be much different from her past. One day, however, she meets a boy who loves to read and studies literature by the water. The boy not only tells her about a novelist, but also makes introductions, which lead to the man and woman becoming a couple. The man lives with his student and a homeless girl he has been helping. The girl does not like the mistress, while the man ponders marrying the latter woman.