Lyn Lyn's beloved Nai Nai has a birthday party approaching! All Lyn Lyn wants to do is make a lucky hat for her very special grandma, but her crochet skills are not nearly as refined as Nai Nai's.So Lyn Lyn hatches a plan for the best crocheter she knows to help her make the perfect lucky hat for Nai Nai!Through perseverance and their special bond, Lyn Lyn comes to realize that the perfect gift for Nai Nai comes from within.