Both are illegitimate children but are regarded as threatened by their younger brother. The beautiful boy hugged the doll and smiled innocently: Sister, go to another world to play! Play, play with your sister! Once you play, you will travel through time and become an unpopular prince. But in the eyes of outsiders, the idle prince who ignores the government and only knows the romance of the country, why is there strangeness and profoundness everywhere in the mansion... [Pure fiction, please do not imitate]