After the death of his adoptive father, Wei Lai, an ordinary young man, discovered a suicide note and a mysterious jade pendant. When tears dripped down the jade pendant, he actually traveled to the fantasy world of "Journey to the West". In this world where gods and demons coexist, he worships the red-breasted horse monkey, one of the four monkeys in the world, as his disciple. He learns the magical power of water control and the transformation of Tiangang, and holds the magical weapon "Sea Purple Golden Beam" that can draw the power of the four seas.
On the way to practice, Wei Lai rescued Bai Yu, a pure-blooded jade rabbit. The girl's innocence and kindness touched him, and the two got to know each other during the adventure of slaying demons. Wei Lai used modern wisdom to resolve crises and save sentient beings, but he also repeatedly fell into trouble due to his outstanding appearance, and tempered his Taoist heart in the temptation. However, the shadow of the ancient ferocious beast Nine-Headed Insect quietly approached, causing a bloody storm in order to seize the treasure.
When the final battle broke out, Wei Lai fought side by side with his master, but Bai Yu died protecting the one he loved. Wei Lai, who was heartbroken, spent his whole life practicing to seal his lover's spirit in Yupei, but when his eyes blurred with tears, he found himself back in a modern rental house. The jade pendant around his neck was glowing with a familiar gleam, and a faint call came from him: "Wei Lai, I have been here..." A monkey relationship spanning time and space, a fateful reincarnation of growth, quietly continued in the light.
