The king of the human country "Humania" dies suddenly, and his only daughter, Princess Evelyn, becomes Queen. As she adjusts to being a queen, the Prime Minister raises the question of the succession.

Queen Evelyn has decided to recruit one candidate from each of the four countries that belong to Huminia as a fiancée candidate.
"Labyris" where rabbit beasts live. "Kitika" where cat beasts live.
"Papit" where dog beasts live. "Ramlow" where the beasts of sheep live.