The protagonist was brought back to the light from the dark blue when he was a child, and was raised by Brother Bai as his younger brother. However, Brother Bai left after a few months. The protagonist has been looking for his savior. Later, he discovered that the devil is very similar to Brother Bai. Because the protagonist originally liked Brother Bai, the Demon King was very similar to Brother Bai, so he fell in love with him. Later, he found out that he fell in love with the wrong person. After finding out, he also learned that his master was the Brother Bai back then. This time, the protagonist suddenly realized that he was good to him, and destroyed the demons and his brother in white, retreated into the mountains and forests, and never cared about him again.
Purpose: Let everyone have a deeper understanding of Gudan.