Next King - Koi No Sennen Oukoku Japan

In a country named Herb Land, several princes are preparing to the great competition, in the end of which one of them will become a king! But you, the young hero of the game (who also happens to be a prince), should know one important thing: if a prince doesn't have success with girls, he won't win the competition! And so, your quest for the crown and for the attention of the fairer sex begins...