I’ll give you this bright plate if you agree to an alliance with me. I know you like things that are bright, and I know you like plates too. Therefore, this bright plate should be more than enough to convince you to enter into an alliance with me.
The person you are trying to get in an alliance with you is the captain of the Mayflower (めい). You want to be in an alliance with the captain of the Mayflower because you really like boats. You want to ride on the Mayflower like, so bad.