What Remains After

When the heir of the yellow throne shows interest in marriage, a visit to the eligible bachelors, the other princes, is a must. But during that visit Erwin, the heir younger brother, realize that something weird is going on: both princes seem to have had disappear for two weeks ten years ago and have no memories of it, rumors of the blue prince being alive after everyone thought he died many years ago have surfaced...what is going on? And why does it feel like something big is about to happen?