|Location||Shinjuku Ward, Tokyo, Japan|
|Japanese Voice||Tomoyuki Shimura (志村 知幸)|
|English Voice||Joel McDonald|
- Mary was a trans woman that was a good friend of Rin. Although she was middle-aged when she first got into the business her partner, a male crossdresser, always told her how pretty she was. In Episode Three she was talking with Rin about him - a man in his 80's - who recently died in a streak of bombings plaguing Tokyo - and from her Rin found out that her partner was a World War II veteran, and was involved in the research going on at Hagashima Island during that time.