(Touhou 12, 12.5, 13) She has short black hair and dark red eyes. She has three red metallic-looking wings on the right side of her back, and three blue arrow-shaped tails coming out from her left side. Carries a trident, has a snake on her right arm (which might be the Seed of Non-Identification), and also wears a black wristband on her left wrist. Her dress is all black with blue and white trim in the middle, a red bow on the front, and a small, yin-yang-like tomoe design at the bottom corner of the skirt of her dress. She wears black thigh-high stockings and red shoes with bows on them.
(Touhou 13.5) Same as above, but her red wings are larger.
The One Changing Between a Tiger and a Bird (TH12.5)
Old Youkai #1 (TH13)
Nue Houjuu is said to be one of the most mysterious and feared youkai in many years yet has been defeated by humans many times. There are many legends according to her appearance when, in fact, she is hiding her "true form." She was just enjoying scaring humans until she got bored of it (although her dialogue suggests she was sealed underground), so she spent most her time underground until the incident in Subterranean Animism where she went above ground to check what happened. She found out that Murasa and the other youkai who were also sealed underground made it above ground and were planning something. She decided to have some "fun" by putting the Seed of Non-identification in the fragments of Tobikura. Eventually, she saw the heroine collecting them and she decided to secretly follow them, either helping or getting in their way before deciding to show up to congratulate the heroine for saving Byakuren.