She is voiced by Emiri Katō in the Japanese version and Monica Rialin in the English Version.
Mey-Rin has extreme binocular acuity, and was given a pair of round glasses by Ciel, which she cherishes and refuses to give up.
She has maroon-red hair and hazel eyes with extraordinary vision, which she keeps hidden behind a pair of large, thick, and overly round glasses.
The glasses limit Mey-Rin's eyesight and prevent her from viewing objects correctly at close-range, which it causes her to be a little clumsy when she's doing her chores; however, Sebastian believes her main problem is her intelligence, not her eyesight. She has a crush on Sebastian as she blushes whenever she's in his presence and she's even clumsier when Sebastian's watching. She's rather superstitious, but she admits to having a soft spot for scary stories.
Like Baldroy and Finny, she provides much of the comic relief.
- According to the official Black Butler's character popularity poll, Mey-Rin's the seventeenth and most popular character in the manga, with 97 votes.
- Mey-Rin's of Chinese descent.
- Her Japanese Voice Actress, Emiri Katō is best known for voicing as Blair from Soul Eater.
- Her English Voice Actress, Monica Rial is best known for voicing as Princess Sakura, Princess Tsubasa from Tsubasa: Reservoir Chronicle, Tsubaki Nakatsukasa from Soul Eater, May Chang from FullMetal Alchemist: Brotherhood, Sayaka Maizono from Danganronpa, Momoka Nishizawa from Sgt Frog, Chane Laforet from Baccano!, Kyoko Kirisaki from Black Cat, Sakura Kinomoto from Cardcaptor Sakura: Clear Card and Mine Kuramae from Fruits Basket (2019 Series).