Shinjitsu no Princess

Aquria, a small kingdom in the middle of the ocean. As you were leading a perfectly normal life..a Knight of the Royal Palace suddenly appears in front of you?! “From today onward, you’re the Princess.” And your life as the Princess suddenly begins. It’s always an exciting day at the palace with your fiance! But people begin aiming for your life... What will happen to the Princess’s romance when everything falls into place..