This episode takes place in a fantasy world.Zhang Yuelu and Jing Muyan in the Twenty-Eight Constellations are the planners responsible for the eighty-one percent of the four monks in Tang Dynasty.Someone who is cautious and conscientious will always get into trouble, while someone who is careless will always get into trouble.When the four masters and apprentices were about to return to the Tang Dynasty, they realized that they had missed one difficulty and had to set up another one before they could cross the Tongtian River.

In the fourteen years since they set up the eighty-one difficulties, the two of them have offended the gods in heaven. At this time, they can't think of anyone who can do this last difficulty, not even the old turtle in Tongtian River.Listen to them.Zhang Yuelu had no choice but to find a boat and planned to let Tang Seng and his apprentice complete the task while taking the boat.

But Jing Muyan was careless and lazy, and lost the boat that Tang Seng and his disciples were going to use to cross the Tongtian River.Zhang Yuelu was diligent and responsible. He made a wooden basin instead of a boat to complete this final difficulty.

But Tang Seng had a psychological shadow about crossing the river in a wooden basin because of his experience of getting the name "Jiang Liu'er". At this moment, the four masters and apprentices remembered that there was an old turtle in the Tongtian River who could help, so Zhu Bajie aroused the old turtle.name.Zhang Yuelu was devastated. As a low-level star king with low magic power, his mission was about to fail, and his years of practice had failed.

Unexpectedly, Jing Muyan, who had always been unreliable, took the initiative to sacrifice himself. He knew the transformation technique that could only be changed once. In order to succeed in the mission, he transformed into an old turtle and carried the four monks across the river. He completed the mission as planned, but he failed again.He can't change back to Jing Muyan.