The princess of a neighboring country visits Tayo's city, and upon seeing her, Lani desires to become a princess as well. Realizing that she can never become a princess, Lani starts to become ill. To cheer Lani up, Hana suggests that the little buses treat Lani like a princess for one day. The little buses start to treat her like a princess, being at her beck and call. But since the little buses are unaccustomed to Lani acting like a princess, they eventually get angry with her.