The androgynous deuteragonist of the story and possibly the antagonist as well. Yin Fei Xing is a normal character within the "game" that Xian Yun finds himself in. Except that Fei Xing has memories of the past life, and in that life, Fei Xing was betrayed and brutally stabbed to death by Xian Yun. Thus, he holds a great hatred towards Xian Yun and seeks revenge on every possible account.