Yellow Robe Demon

The Yellow Robe Demon (黃袍怪) is an antagonist of the classic Chinese novel Journey to the West. He is actually the Wood Wolf of Legs (奎木狼) of the 28 Mansions.

Past
The Wood Wolf of Legs of the 28 Mansions once fell in love with a Jade Maiden (玉女) in Heaven and decided to elope with her. However, didn't want to ruin the Heaven's pureness, he told her to reincarnate as a human first, which she did as Baihuaxiu (百花羞), the third princess of the Kingdom of Baoxiang (寶象國). Meanwhile, he became a demon lord, based in Moon Waves Cave (波月洞) on Bowl Mountain (碗子山), kidnapped the princess, marries her for 13 years and had two children with her.

Role in the story
Upon learning that Xuanzang had arrived to his mountain, knowing that eating the monk's flesh would grant him immortality or long lifespan, the Yellow Robe Demon captured Xuanzang, forced Zhu Bajie and Sha Wujing try to save their master but they are no match for the demon. Worse, the demon disguised as a handsome man and framed Xuanzang being a demonic tiger in front of the king. Zhu Bajie then went to bring back Sun Wukong – who was previously banished by Tang Sanzang after killing the White Bone Demon – to help them but they were still unable to defeat the demon lord, who had managed to escaped. Sun Wukong then seeks help from Heaven. The Jade Emperor discovers that one of the 28 Mansions is missing, so he orders the remaining 27 to subdue the demon. Upon hearing his fellow Mansions, he headed back to Heaven. As a punishment, he is ordered to become a furnace keeper under Taishang Laojun.