Jiu Yue

Now
Jiu Yue has the appearance of a young person in their 20s. She has a short white bob and lets her nine tails and fox ears show in her human form. In her animal form, she's a cute white nine tail fox.

Childhood
As a child, she was constantly in fox form until she started to learn to transform. In her academy days, in addition to her dark-blue school uniform, she kept her hair long and flowing.

Powers and abilities
She can transform into anything she wants. As a child, she could only change her (fox) face into different more or less achieved human ones.

Now
She acts like a young adult even though she's been working on her concentration for 800+ years. She loves instant ramen and hanging out with her friends.

Childhood
In her past as an academy student, she had Chunnibyou (also called Eighth-Grader Syndrome), acting like a renowned demon. She also had a infatuation with Xiao Tian, because of his appearance.

Trivia

 * She once accidentally drank Guanyin coffee and temporarily gained an elegant fox form.
 * She used to have long hair, however she cut it after Xiao Yu became obsessed with giving her makeovers.