Under the guidance of Tang Monk, Monkey King learns to redirect his abundant energy. From a carefree show-off to a responsible leader, Monkey King has outgrown his mischief and caprice, and developed into a true disciple with increasing self-control. However, challenges remain on the trip to the West in search of the Sacred Scriptures. This is the fourth volume of Adventures of Monkey King series.
They pass by Mount Hao. The demon living in Fire-Cloud Cave on Mount Hao is called Boy Sage King. He is Red Boy, the son of the Bull Demon King and Iron Fan Princess. The demon changes himself into a child who has suffered misfortune, to attempt to trap the pilgrim monks. Red Boy kidnaps the master. The three brothers find out where the demon is living, and that Red Boy is the son of Bull Demon King. Monkey is confident that he and Bull Demon King are still friends, so he tries to appeal to Red Boy's affection and rescue his master. However, the demon refuses, and defeats Monkey with the True Samadhi Fire.