Ron Mei is a fair-skinned girl who always seems to have a generally cheery expression. She has blonde hair in a bun, and a small pair of wings on her back. Ron Mei also seems to keep her eyes constantly narrowed to slits, rarely ever opening her eyes enough to reveal their yellow colour. She tends to wear yellow-colored clothing.

She has a very bright and cheerful has shown a far more devious and a sinister side that is still hidden behind her smile. Although she also appears to be dimwitted.