Prabu Tapa Agung was an old king. He had two daughters, Purbararang and Purbasari. Prabu Tapa Agung planned to retire as a king. Prabu Tapa Agung appoint Purbasari, her youngest daughter to replace him as a the leader of the kingdom.
"I'm too old, it's time I stepped off the throne," said Prabu Tapa.
Purbasari has a sister named Purbararang. Hearing this, Purbararang was angry. He does not agree his sister was appointed to replace their father.
"You cannot ask her to be the queen, Father. I'm older than she is. It's supposed to be me, not her!" said Purbararang.
But the king still chose Purbasari to be the next queen. Purbararang then set a bad plan with her fiance, Indrajaya. Together they went to a witch and asked her to put a spell on Purbasari. Later, suddenly Purbasari had bad skin. There were black dots all over her body. Purbararang make it an excuse to expel her sister.
"People who cursed like her does not deserve to be a Queen!" said Purbararang to her father.
And then Purbararang go to meet her sister.
"You are not as beautiful as I am. You cannot be the queen. Instead, you have to leave this palace and stay in a jungle," said Purbararang.
Then she sent a Patih (Governor) to alienate Purbasari into the forest. Purbasari was very sad.
Arriving at the jungle, Patih (The Governor) is still kind enough to make a hut for Princess Purbasari. He also advised Purbasari, "Be brave Princess. The affliction will surely end, the Almighty will always be with Princess".
"Thank you uncle," said Purbasari.
Now she had to stay in the jungle. Over in the jungle he has many friends of animals that are always good to her. Everyday she spent her time playing with some animals. Among these animals there was a mysterious black hairy monkey that always tried to cheer her up. It was not just an ordinary monkey, he had magical power. And he also could talk with humans. The monkey's name was Lutung Kasarung. The monkey is the most attention to Purbasari. Lutung Kasarung is always make happy Princess Purbasari to get the beautiful flowers and fruits with their friends.
At the time of full moon night, Lutung Kasarung acting strange. He walked to a quiet place and meditate. He is obtaining something to the Gods. This proves that the Lutung Kasarung no ordinary creature. Not long later, near the monkey broke ground and created a small lake, the water was clear as a bell. The water contains a ingredients that is very fragrant.
"What's in it for me?" thought Purbasari.
But she was willing to oblige. Shortly after he plunged himself into the river. Something happened to her skin. Her bad skin is cured and she becomes beautiful again. Purbasari very surprised and very happy when she looked in the mirror in the lake.
After that, she asked Lutung Kasarung to accompany her to go back to the palace. Purbararang was very shocked, she not believe to see her sister get the beauty skin again. She knew she had to come up with another bad idea.
"Who is the longest hair she was the one who wins and will be the queen!" said Purbararang.
Originally Purbasari not want to, but because Purbararang urged continued to serve her. The king then measured his daughters hair. Apparently Purbasari hair is longer.
"Purbasari had longest hair," said the king.
But Purbararang did not give up.
"Well I lose,, but now let us compete, who have the handsomest fiance,, This is my fiance," said Purbararang while approached Indrajaya.
Purbasari was sad. She knew Purbararang's fiance was handsome. And she did not have a fiance yet. Purbasari became restless and confused. Finally, he glanced at his hand and pulled Lutung Kasarung. Lutung Kasarung bounced as if to calm Purbasari.
Purbararang laughed out loud, "So the monkey is your fiance?"
At that time also Lutung Kasarung immediately meditated. Suddenly there was a miracle. Lutung Kasarung turn into a handsome young man looking very handsome, and he was even more handsome than Indrajaya. All surprised to see the incident as she cheered.
Purbararang finally admitted defeat and guilt over this. He apologized to his brother and begged not to be punished. She forgave Purbararang and her fiance and let them stay in the palace.
At last, Purbasari become a queen, accompanied by a young man in her dreams. The young man who turns out has always been with him in the forest in the shape of a monkey.