Once upon a time in West Java, lived a writer king who had a beautiful daughter.  Her name was Dayang Sumbi.  She liked weaving very much.  Once she was weaving a cloth when one of her tools fell to the ground.  She was very tired, at the same time she was too lazy to take it.  Then she just shouted out loudly.
     Anybody there! Bring me my tool.  I will give you special present.  If you are female,  I will consider you as my sister if you are male, I will marry you suddenly a male dog, its name was Tumang came.  He brought her the falling tool.  Dayang Sumbi was very surprised.  She regretted her words but she could not deny it.  So she had marry Tumang and leave her father.  Then they lived in a small village.  Several months later they had a son.  His name was Sangkuriang.  He was a handsome and healthy boy.
    Sangkuriang liked hunting very much, especially deer.  He often hunted to the wood using his arrow. When he went hunting, Tumang was always with him.
     One day Dayang Sumbi wanted to have deer’s  heart so she asked Sangkuriang to hunt for a deer.  Then Sangkuriang when to the wood with his arrow and his faithful dog.  Tumang, but after several days in the wood Sangkuriang could not find any deer.  Then where all disappeared.  Sangkuriang was exhausted and desperate.  He did not want to disappoint her mother so he killed Tumang.  He did not know that Tumang was his father.  Tumang’s  heart to her mother. But Dayang Sumbi knew that it was Tumang’s heart.  She was so angry that she could not control her emotion.  She hit Sangkuriang at his head Sangkuriang was wounded.  There was a scar in his head.  She also repelled her son.  Sangkuriang left her mother in sadness.
      Many years passed and Sangkuriang became a strong young man.  He wandered everywhere.  One day he arrived.  at his own village but he did not realize it.  There he met Dayang Sumbi.  At the time Dayang Sumbi was given an eternal beauty by God so she stayed young forever.  Both of them did know each other.  So they fall in love and then they decided to marry.  But then Dayang Sumbi recognized a scar on Sangkuriang’s head.  She knew that Sangkuriang was his son.  It was impossible for them to marry.  She told him but he did not believe her.  He wished that they marry soon.  So Dayang Sumbi gave very difficult condition.  She asked Sangkuriang  to build a lake and a boat in one night! She said she needed that for honeymoon.
    Sangkuriang agreed.  With the help of genie and spiritis, Sangkuriang tired to build them.  By midnight he had completed the lake by building a dam in Citarum river.  Then he started making the boat.  It was almost dawn when he almost finished it. Meanwhile Dayang Sumbi kept watching on him.  She was very worried when she knew this.  So she made lights in the east. Then the spiritis thought that was already dawn.  It was time for them to leave.  They left Sangkuriang alone.  Without their help he could not finish the boat.
    Sangkuriang was angry.  He kicked the boat.  Then the boat turned upside down.  It later, became Mount Tangkuban Perahu.  Which means an upside-down boat.  From a distant the mount really looks like an upside down boat.

According to the story, Tumang was….