Princess Iris married to Lilac, the knight who rescued her from the imprisoned tower. The two visit his homeland of Lucania to get permission to marry. Waiting there was Lilac's older brother, King Clematis, and thistle. The older brothers seem to have their own expectations, but Iris replies with a sincere attitude. Meanwhile, Lilac, driven by her jealousy at seeing Iris happily talking to her other man, hugs her wildly in her bathroom. Iris, who loves him even more. However, Lilac's ex-fiancé, Lobelia, appears in front of the happy couple...? A royal love set in the royal family!