Wish
There is a treasure on top of a narwhal who wears a towel that will grant your greatest wish.
Picture this narwhal: above its long horn there is a huge, shiny treasure floating. It pulls the towel tight around itself, "Brururu you found me I see!" it whistles at you.
き
まれ
None
In order to open the treasure and get your wish, you need the key (き). The narwhal knows where it's hidden, so you'll have to convince it to tell you where the key is.
If you find the key, what will you wish for? Think about your single, greatest wish. Close your eyes and picture it as clearly as you can and you'll find the key.