Erwin De Lechen, his name is so perfect and majestic. Erwin is the crown prince of the Lechen Kingdom which leads the western region called Berghev. As a candidate for the next king to replace the king who is quite old, Erwin always tries to be a fair and responsible leader. He sometimes went to town once a week to provide social assistance to poor people. his father agreed to the engagement between Lily Allen, the daughter of Grand Duke Allen, and him. Erwin is not at all interested in Lily.