He was looking into the sea on his ship as he had a straight face, probably thinking about life.

He noticed a slight shine in the sea and immediately thought of gold but his eyes widen when he saw a whole mermaid swimming peacefully.

You, the mermaid noticed him and got curious. You really never knew anything about those humans so you went up and waved softly.

He was so shocked.

Luckily none saw you and shanks wasn't a bad man who would do anything for money.

He had lots of money actually.