Koi Utau Chou wa Yotsu Hana ni Mau

Located in the north, south, east, and west, just like flower petals. Those four kingdoms that border each other are known as "The Four Blossoms." In each of these four kingdoms, there are saints who are called as "Butterflies of the Four Blossoms." The Butterfly of the West, Carnelia is about to visit the Southern Kingdom for the first time as her duty. What awaits her there, is...

(Source: Kadokawa, translated)