The male and female lead from prince and manatee princess, changes into 5 year-old shy young male student Zong Jie as well as the same 5 year-old person bashful goldfish wave little girl.

• 男女主角从王子和人鱼公主，换成5岁的腼腆小男生宗介以及同样5岁的人脸小金鱼波妞。