Sifeng in "Coloured Glass" is a disciple of Lize Palace in this life, but he is not a human being, but a demon family of golden-winged birds. My father is Li Zegong, and my mother is Hao Feng, a female disciple of Dianjing Valley. Everyone only knows that Yu Sifeng is the apprentice of the palace master, but they don't know that he is also the son of the palace master, so the palace master is so partial to Yu Sifeng that everyone thinks that the palace master really loves talents. In fact, the palace master just prefers his own children.

Yu Sifeng's identity in his previous life is also very special. He is actually the first star rising by the Tianhe River. He fell in love with Vega at first sight and loved her deeply. After the death of Weaver Girl, Yu Sifeng has been looking for a woman who looks like Weaver Girl. Xuan Ji's appearance is exactly the same as that of the Weaver Girl, so Yu Sifeng chased her back to earth to be reborn.

In the tenth generation, Chu Xuan was silent. Because she was full of anger and resentment, she hanged herself in every generation. But Yu Sifeng has been with her, and every life is for her death.

In this life, Yu Sifeng, Xuan Ji, Yan Min and others experienced and realized his long-standing congenial friendship and heroic pride in helping others in a narrow sense, and also opened a love that made him heartfelt but never abandoned.

Yu Sifeng has deep feelings for Xuan Ji. He liked Xuan Ji from the first time he met him, and then his feelings for Xuan Ji gradually deepened.

However, the relationship between Xuan Ji and Yu Sifeng was not smooth. When Chu Xuanji saw that Yu Sifeng had become a golden-winged bird, she was a little scared. She gave him up, and Yu Sifeng left with love and hate.