Why is Jiya afraid of the ocean?

What happens when the big wave comes?

Why does Jiya refuse to be the Old Gentleman's son?

How does Jiya feel when he sees people building a house on the beach?

Why does Kino's father begin paying Jiya wages for working on the farm?

How does the Old Gentleman feel about people rebuilding homes on the beach, and how does Jiya respond?

What does Kino think about Jiya's desire to marry Setsu, and how does he feel after they are married?

How does Jiya prepare in case the big wave returns?