|Did you notice that:
Spoiler (mouse over to view)
Each character in the stories the rain tell are actually the same set of characters from the beginning. The rain tells the life story of the married couple in the beginning, although at random pace and not chronologically.
In order of the story, the focus characters are:
Wife: Girl who hates rain due to break up; little girl who rides home with tutor; woman getting proposed to; young lady stuck in the same room with the person she hates.
Husband: Judo boy who aids the girl to cover from the rain; little boy with the plaid umbrella; Guy proposing to girlfriend; The young man whom the lady hates.
Ex-Girlfriend of Husband: Girl whom breaks up with the judo boyfriend; little girl whom has a plaid umbrella and she shares with her crush.
Now enjoy rereading the story for those who missed out on anything.