I would say, no, it isn't. The hairstyle doesn't match, the color doesn't match, she's missing her tail, and the weapon isn't the same.
EDIT: no furry ears either
After some rough Google translating, it should be noted there's no mention of Ch'en's name, so I believe that should be confirmation that this is, indeed, not Ch'en. Still no idea who this is, though.
It's an OC named Ling Shalong, according to the commentary. "Myouren Temple Bodyguard." Little unsure about the pronunciation of the name of the follower whose OC this is, 良 could be a million things.